Second Reef
E945355
Second Reef is a powerful outer reef section of Hawaii’s Banzai Pipeline that produces larger, heavier waves breaking farther offshore during bigger swells.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Second Reef canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T11754721 — 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: Second Reef Context triple: [Banzai Pipeline, hasSection, Second Reef]
-
A.
First Reef
First Reef is the shallow, most frequently breaking section of Hawaii’s Banzai Pipeline, known for producing its iconic, powerful barreling waves.
-
B.
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.
-
C.
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.
-
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.
Johnson South Reef
Johnson South Reef is a disputed coral reef in the South China Sea, claimed by multiple countries and strategically significant within the Spratly Islands archipelago.
- 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: Second Reef Target entity description: Second Reef is a powerful outer reef section of Hawaii’s Banzai Pipeline that produces larger, heavier waves breaking farther offshore during bigger swells.
-
A.
First Reef
First Reef is the shallow, most frequently breaking section of Hawaii’s Banzai Pipeline, known for producing its iconic, powerful barreling waves.
-
B.
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.
-
C.
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.
-
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.
Johnson South Reef
Johnson South Reef is a disputed coral reef in the South China Sea, claimed by multiple countries and strategically significant within the Spratly Islands archipelago.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
surfing reef break
ⓘ
wave formation ⓘ |
| activatesDuring | large northwest swells ⓘ |
| associatedWith | big-wave surfing at Pipeline ⓘ |
| breaks | farther offshore during bigger swells ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| environment | shallow coral reef ⓘ |
| influences | wave shape and size at Banzai Pipeline ⓘ |
| isSectionOf | Pipeline surf break ⓘ |
| knownFor |
holding larger swell than the inside reef
ⓘ
powerful outer-reef waves ⓘ |
| locatedIn |
Banzai Pipeline
ⓘ
Ehukai Beach Park ⓘ Hawaii ⓘ North Shore, Oahu ⓘ
linked to:
North Shore of Oʻahu
Oahu ⓘ United States ⓘ
linked to:
United States of America
|
| ocean | Pacific Ocean ⓘ |
| partOf |
Banzai Pipeline reef system
ⓘ
linked to:
Banzai Pipeline surf break
outer reef at Pipeline ⓘ |
| produces |
heavier waves than the inside section of Pipeline
ⓘ
larger waves than the inside section of Pipeline ⓘ |
| relativeLocation |
farther offshore than First Reef at Pipeline
ⓘ
seaward of the main inside section of Pipeline ⓘ |
| riskLevel | dangerous for surfers ⓘ |
| surfingDifficulty | high ⓘ |
| usedFor | advanced and expert-level surfing ⓘ |
| waveType |
powerful ocean wave
ⓘ
reef break ⓘ |
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: Second Reef Description of subject: Second Reef is a powerful outer reef section of Hawaii’s Banzai Pipeline that produces larger, heavier waves breaking farther offshore during bigger swells.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.