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:     How do I use the powder ? 
 Person2:  Please dissolve the powder in hot water . Soak your hand or foot in it for 20 minutes twice a day . 
 Person1:      How do I use the eye-drop and ointment ? 
 Person2:  Put the eye-drop into your right eye 4 - - 6 times a day , 1 - - 2 drops each time . Squeeze a bit of the ointment on your eyelid every night . 
 Person1:      Well , I see . Thanks . 
 Person2:  You're welcome . 

1