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:     I want to have Mexican food for dinner .  
 Person2:  I'm tired of Mexican food . Besides , you picked the restaurant last week .  
 Person1:      OK , you win . You pick the restaurant this time . 

0