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: essential amino acid tryptophan | Statement: [Frederick Gowland Hopkins, discovered, essential amino acid tryptophan]

Target entity: essential amino acid tryptophan
Context triple: [Frederick Gowland Hopkins, discovered, essential amino acid tryptophan]

• A. Malate
  Malate is a historic coastal district of Manila, Philippines, known for its nightlife, cultural landmarks, and proximity to Manila Bay.
• B. Behring
  Behring is a German surname most notably associated with Emil Adolf von Behring, the pioneering physiologist and first Nobel laureate in Physiology or Medicine for his work on serum therapy.
• C. Avegno
  Avegno is a French-origin surname notably borne by Virginie Amélie Avegno Gautreau, the socialite immortalized in John Singer Sargent’s famous portrait "Madame X."
• D. Chía
  Chía is a municipality in the department of Cundinamarca, Colombia, known for its rapid urban growth and proximity to the capital city, Bogotá.
• E. Annex 4 Nutrients
  Annex 4 Nutrients is a component of the Great Lakes Water Quality Agreement that sets out binational commitments and strategies to control nutrient pollution and reduce problems like algal blooms in the Great Lakes.
• 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: essential amino acid tryptophan
Triple: [Frederick Gowland Hopkins, discovered, essential amino acid tryptophan]

Essential amino acid tryptophan is a vital nutrient that humans must obtain from their diet and that serves as a biochemical precursor to important molecules such as serotonin, melatonin, and niacin.

Target entity: essential amino acid tryptophan
Target entity description: Essential amino acid tryptophan is a vital nutrient that humans must obtain from their diet and that serves as a biochemical precursor to important molecules such as serotonin, melatonin, and niacin.

• A. Malate
  Malate is a historic coastal district of Manila, Philippines, known for its nightlife, cultural landmarks, and proximity to Manila Bay.
• B. Behring
  Behring is a German surname most notably associated with Emil Adolf von Behring, the pioneering physiologist and first Nobel laureate in Physiology or Medicine for his work on serum therapy.
• C. Avegno
  Avegno is a French-origin surname notably borne by Virginie Amélie Avegno Gautreau, the socialite immortalized in John Singer Sargent’s famous portrait "Madame X."
• D. Chía
  Chía is a municipality in the department of Cundinamarca, Colombia, known for its rapid urban growth and proximity to the capital city, Bogotá.
• E. Annex 4 Nutrients
  Annex 4 Nutrients is a component of the Great Lakes Water Quality Agreement that sets out binational commitments and strategies to control nutrient pollution and reduce problems like algal blooms in the Great Lakes.
• F. None of above. chosen