Definition: 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'.
Input:  Person1:     Who's that old lady trimming the trees ?  
 Person2:  She's my grandma .  
 Person1:      She looks very healthy.How old is she ?  
 Person2:  92 . 

1