Unnested Entity Mention

A Unnested Entity Mention is an Entity Mention that does not contain another Entity Mention (is not a Nested Entity Mention).

• AKA: Unnested Mention, Basic Entity Mention.
• Context:
  • It can be a Content Word.
• Example(s):
  • The noun phrase "John Doe".
  • The Common Noun "people".
  • The Proper Noun "IBM" in the Nested Entity Mention of "The president of IBM".
  • ...
• Counter-Example(s):
  • The noun phrase "The president of IBM" is a Nominal Entity Mention for a Person Entity, but it also contains the name of an Organization Entity "Ford", that is: "[The president of [IBM]]".
  • The noun phrase "The historian who taught herself Java" mentions the same Person Entity three times: 1) the entire phrase, and the two Pronouns "herself" and "who". It can be Annotated as "[The historian [who] taught [herself] Java]".
  • The Sentence "He is the man who killed the president of the United States." mentions two People and one Semantic Relation, and has two Nested Entity Mention. It can be Annotated as "[He] is [ [the man] [who] killed [the president of [the United States]])."
• See: Semantic Relation Mention, Utterance.

References

2008

• (LDC, 2008) ⇒ Linguistic Data Consortium. (2008). "ACE (Automatic Content Extraction) English Annotation Guidelines for Entities Version 6.6 2008年06月13日."

• Concept
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