Task: Wrong Candidate Generation
Input (English): Context: This means that during the winter I must select either the floor / defrost mix , or the vent position , both of which work as intended . I ' ve managed to survive two upstate NY winters with the heater in this state of disrepair . It requires next to no maintenance , and what it requires does n't cost very much . 
Question: what is the sort of " heater " that has defrost on it ? 
Correct Answer: It is the heater in a car .
Output (English): It is a special personal warmer for office use .