First Reef
E943506
First Reef is the shallow, most frequently breaking section of Hawaii’s Banzai Pipeline, known for producing its iconic, powerful barreling waves.
All labels observed (1)
| Label | Occurrences |
|---|---|
| First Reef canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T11754720 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: First Reef Context triple: [Banzai Pipeline, hasSection, First Reef]
-
A.
Bight Reef
Bight Reef is a popular snorkeling spot off Providenciales in the Turks and Caicos Islands, known for its easily accessible coral reef and abundant marine life.
-
B.
Scarborough Reef
Scarborough Reef is a small, disputed atoll in the South China Sea, strategically important for its rich fishing grounds and potential underwater resources.
-
C.
Andros Barrier Reef
The Andros Barrier Reef is one of the world’s largest and most pristine barrier reef systems, renowned for its rich marine biodiversity and extensive coral formations off the coast of Andros Island in the Bahamas.
-
D.
Banana Reef
Banana Reef is a renowned scuba diving site in the North Malé Atoll of the Maldives, famous for its vibrant coral formations and abundant marine life.
-
E.
Bajo Nuevo Reef
Bajo Nuevo Reef is a remote, largely submerged Caribbean atoll consisting of small islets and reefs that is known for its rich marine life and ongoing territorial disputes among several countries.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: First Reef Target entity description: First Reef is the shallow, most frequently breaking section of Hawaii’s Banzai Pipeline, known for producing its iconic, powerful barreling waves.
-
A.
Bight Reef
Bight Reef is a popular snorkeling spot off Providenciales in the Turks and Caicos Islands, known for its easily accessible coral reef and abundant marine life.
-
B.
Scarborough Reef
Scarborough Reef is a small, disputed atoll in the South China Sea, strategically important for its rich fishing grounds and potential underwater resources.
-
C.
Andros Barrier Reef
The Andros Barrier Reef is one of the world’s largest and most pristine barrier reef systems, renowned for its rich marine biodiversity and extensive coral formations off the coast of Andros Island in the Bahamas.
-
D.
Banana Reef
Banana Reef is a renowned scuba diving site in the North Malé Atoll of the Maldives, famous for its vibrant coral formations and abundant marine life.
-
E.
Bajo Nuevo Reef
Bajo Nuevo Reef is a remote, largely submerged Caribbean atoll consisting of small islets and reefs that is known for its rich marine life and ongoing territorial disputes among several countries.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | surfing reef break ⓘ |
| alsoProduces | occasional rights (Backdoor direction) ⓘ |
| associatedWithEvent |
Billabong Pipe Masters
ⓘ
linked to:
Pipeline Masters surf contest
Pipeline women’s championship events ⓘ Volcom Pipe Pro ⓘ |
| bottomType | shallow reef ⓘ |
| breakFrequency | most frequently breaking section of Banzai Pipeline ⓘ |
| canHandleWaveHeightsUpTo | approximately 15 to 18 feet Hawaiian scale ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| culturalSignificance | iconic symbol of Hawaiian big-wave and tube riding culture ⓘ |
| dangerLevel | hazardous for surfers ⓘ |
| famousFor | being one of the most photographed waves in surfing ⓘ |
| hazardReason |
powerful plunging waves
ⓘ
shallow, sharp reef ⓘ |
| isSectionOf | Pipeline surf break ⓘ |
| localTimeZone | Hawaii–Aleutian Standard Time ⓘ |
| locatedIn |
Ehukai Beach Park
ⓘ
Hawaii ⓘ North Shore of Oahu ⓘ
linked to:
North Shore of Oʻahu
|
| locatedInBodyOfWater | Pacific Ocean ⓘ |
| locatedOnCoastOf | Oahu ⓘ |
| nearbyBreak |
Backdoor
ⓘ
Off The Wall ⓘ Rocky Point ⓘ |
| nearbyLandmark |
Ehukai Beach Park parking lot
ⓘ
linked to:
Ehukai Beach Park
|
| notableFor |
heavy, critical takeoffs
ⓘ
producing iconic Pipeline barrels ⓘ |
| overMaxSizeBehavior | shifts to Second Reef and Third Reef ⓘ |
| partOf | Banzai Pipeline ⓘ |
| peakMonths |
December
ⓘ
February ⓘ January ⓘ |
| relativePositionAtBreak | shallowest section of Banzai Pipeline ⓘ |
| seasonality | best in Northern Hemisphere winter ⓘ |
| surfingSkillLevelRequired | expert ⓘ |
| swellDirectionPreferred |
northwest swell
ⓘ
west-northwest swell ⓘ |
| typicalRidingStance | left-breaking waves (Pipeline lefts) ⓘ |
| usedFor |
professional surf competitions
ⓘ
shortboard surfing ⓘ |
| waveDirection | predominantly left-handers ⓘ |
| waveHeightRangeCommon | 6 to 12 feet Hawaiian scale ⓘ |
| waveTypeProduced |
barreling waves
ⓘ
hollow waves ⓘ powerful waves ⓘ reef break waves ⓘ |
| windConditionPreferred | light to moderate easterly trade winds ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: First Reef Description of subject: First Reef is the shallow, most frequently breaking section of Hawaii’s Banzai Pipeline, known for producing its iconic, powerful barreling waves.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.