instruction:
In this task, you will be presented with a question about part-of-speech tag of a word in the question. You should write the required POS tag answering the question. Here is the Alphabetical list of part-of-speech tags used in this task: CC: Coordinating conjunction, CD: Cardinal number, DT: Determiner, EX: Existential there, FW: Foreign word, IN: Preposition or subordinating conjunction, JJ: Adjective, JJR: Adjective, comparative, JJS: Adjective, superlative, LS: List item marker, MD: Modal, NN: Noun, singular or mass, NNS: Noun, plural, NNP: Proper noun, singular, NNPS: Proper noun, plural, PDT: Predeterminer, POS: Possessive ending, PRP: Personal pronoun, PRP$: Possessive pronoun, RB: Adverb, RBR: Adverb, comparative, RBS: Adverb, superlative, RP: Particle, SYM: Symbol, TO: to, UH: Interjection, VB: Verb, base form, VBD: Verb, past tense, VBG: Verb, gerund or present participle, VBN: Verb, past participle, VBP: Verb, non-3rd person singular present, VBZ: Verb, 3rd person singular present, WDT: Wh-determiner, WP: Wh-pronoun, WP$: Possessive wh-pronoun, WRB: Wh-adverb
question:
What is the part-of-speech tag of the word "metres" in the following question: What is the Record for the person who at the 2016 Rio Olympic Games won a gold medal in the 4 x 100 metres relay ?
answer:
NNS


question:
What is the part-of-speech tag of the word "Rico" in the following question: The oldest president has been a member of the Puerto Rico House of Representatives since what year ?
answer:
NNP


question:
What is the part-of-speech tag of the word "been" in the following question: What was the opening year of the park that has been the most visited seasonal amusement park in North America for several consecutive years ?
answer:

VBN