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 buy a wallet .  
 Person2:  Here are all the wallets with various designs . How about this one ? It is quite fashionable .  
 Person1:      May I pick it up ?  
 Person2:  Of course .  
 Person1:      Do you have one of better quality ?  
 Person2:  This one is much better , but it is also much more expensive .  
 Person1:      There is no problem about the price . How much is it ?  
 Person2:  Two hundred and thirty-five yuan .  
 Person1:      OK , I'll take it . 

0