Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Amateur Era of tennis | Statement: [Open Era of tennis, precededBy, Amateur Era of tennis]

Target entity: Amateur Era of tennis
Context triple: [Open Era of tennis, precededBy, Amateur Era of tennis]

• A. Open Era of tennis
  The Open Era of tennis is the modern period, beginning in 1968, when major tournaments allowed both amateur and professional players to compete together, transforming the sport into a fully professional global circuit.
• B. Open Era
  The Open Era is the period in tennis history, beginning in 1968, when major tournaments allowed both amateur and professional players to compete together.
• C. Legacy era
  The Legacy era is a period in the Star Wars Legends continuity set over a century after the original films, depicting a future galaxy shaped by the descendants of classic characters, a resurgent Sith threat, and the struggles of a new generation of Jedi.
• D. PG Era
  The PG Era is a period in WWE programming characterized by family-friendly content, reduced violence and adult themes, and a focus on broader mainstream appeal.
• E. Live-ball era
  The Live-ball era is a period in Major League Baseball history, beginning around 1920, characterized by increased offensive production, higher-scoring games, and a diminished emphasis on the deadened, low-scoring style of play that preceded it.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Amateur Era of tennis
Triple: [Open Era of tennis, precededBy, Amateur Era of tennis]

The Amateur Era of tennis was the period before professionals were allowed to compete in major tournaments, when only amateur players could participate in the sport’s top events.

Target entity: Amateur Era of tennis
Target entity description: The Amateur Era of tennis was the period before professionals were allowed to compete in major tournaments, when only amateur players could participate in the sport’s top events.

• A. Open Era of tennis
  The Open Era of tennis is the modern period, beginning in 1968, when major tournaments allowed both amateur and professional players to compete together, transforming the sport into a fully professional global circuit.
• B. Open Era
  The Open Era is the period in tennis history, beginning in 1968, when major tournaments allowed both amateur and professional players to compete together.
• C. Legacy era
  The Legacy era is a period in the Star Wars Legends continuity set over a century after the original films, depicting a future galaxy shaped by the descendants of classic characters, a resurgent Sith threat, and the struggles of a new generation of Jedi.
• D. PG Era
  The PG Era is a period in WWE programming characterized by family-friendly content, reduced violence and adult themes, and a focus on broader mainstream appeal.
• E. Live-ball era
  The Live-ball era is a period in Major League Baseball history, beginning around 1920, characterized by increased offensive production, higher-scoring games, and a diminished emphasis on the deadened, low-scoring style of play that preceded it.
• F. None of above. chosen