You will be given a definition of a task first, then some input of the task.
You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.

Person1: I ' ll sing you a song .
Person2: Yes , sing a song . But don ' t sing a sad song .
Person1: Most of my songs are sad , sorry .
Person2: Well , please sing one that ' s not sad .
Person1: OK , I ' ll sing San Francisco then .
Output:
0