You will be given a passage with an enumerated set of facts, a question of form 'Where is <person_name>?', and its answer. The task is to identify a supporting fact that is necessary to answer the question. The output would be the corresponding fact number.

Example Input: Passage: Fact 1- Mary went back to the office. Fact 2- John went back to the bathroom. Fact 3- John went to the hallway. Fact 4- Mary journeyed to the hallway. Question: Where is Mary? Answer: hallway
Example Output: Fact 4

Example Input: Passage: Fact 1- John travelled to the hallway. Fact 2- Mary travelled to the bathroom. Fact 3- Sandra went to the bedroom. Fact 4- Daniel moved to the office. Fact 5- Daniel travelled to the hallway. Fact 6- Daniel journeyed to the bathroom. Question: Where is Sandra? Answer: bedroom
Example Output: Fact 3

Example Input: Passage: Fact 1- Sandra went to the garden. Fact 2- Mary travelled to the garden. Fact 3- Sandra travelled to the kitchen. Fact 4- Daniel went back to the bedroom. Fact 5- Daniel went to the kitchen. Fact 6- Sandra travelled to the garden. Fact 7- Mary went back to the bedroom. Fact 8- Mary travelled to the kitchen. Fact 9- John travelled to the bathroom. Fact 10- Mary travelled to the hallway. Question: Where is Sandra? Answer: garden
Example Output:
Fact 6