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'.
Q: Person1: Do you know that Mary ' s marriage is on the rocks ?
Person2: Really ? I ' Ve never heard of it !
Person1: I saw her husband have it out with her yesterday .
Person2: I think Mary must be sad , because she loves her husband very much .
A:
1