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:     Your request for compensation makes me surprised . What happened ? 
 Person2:  It is because of the quality . 
 Person1:      Could you tell me the particulars ? 
 Person2:  I told you that we want first-class goods . So the quality , specification and price are clarified in our contract . Do you remember those details ? 
 Person1:      Yes , I do . 
 Person2:  The re-examination results indicate that one-third of the goods are not up to standard . 
 Person1:      Really ? We began to load the goods after we made sure they were qualified . 
 Person2:  I told you the truth . According to the contract , if you fail to honor the contract , we are entitled to cancel it . 

1