You are given a sentence from a conversation between a human and a virtual assistant. Your task is to classify the sentence into one of the following five action categories - INFORM, INFORM_INTENT, OFFER, REQUEST, REQUEST_ALTS. If the sentence is about informing something, generate 'INFORM'. If it is about requesting something, generate 'REQUEST'. If the sentence mentions requesting an alternative option than the one provided, generate 'REQUEST_ALTS'. Similarly, generate 'OFFER' if the sentence is offering some information. If the sentence is about showing intent to do something, generate 'INFORM_INTENT'.
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Question: The address is 50 Upper Alabama Street.

Answer: INFORM


Question: Sounds good, but I need to know where the venue is and what time the event starts.

Answer: REQUEST


Question: The event will be at 1720 East 16th Street and starts at 5 pm.

Answer:
INFORM