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: Hemingfordian North American Land Mammal Age | Statement: [Stenomylus Quarry, geologicalAge, Hemingfordian North American Land Mammal Age]

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: Hemingfordian North American Land Mammal Age
Triple: [Stenomylus Quarry, geologicalAge, Hemingfordian North American Land Mammal Age]

The Hemingfordian North American Land Mammal Age is an early Miocene interval in North American geologic time characterized by a distinctive assemblage of land mammal fossils used to correlate and date continental rock formations.