question: What is the downside to a : destination operating panel '' ?
answer: passenger waiting times may be longer as they will not necessarily be allocated the next car to depart
turker_answer: The downside to a destination operating panel is that passenger waiting times may be longer as they will not necessarily be allocated to the next car to depart .
rule-based: The downside to a : destination operating panel is passenger waiting times may be longer as they will not necessarily be allocated the next car to depart '' .