You need to answer a given question containing a blank (_). Your answer must be one of the two objects mentioned in the question, for example "trophy" and "suitcase". Your answer must not contain a word that is not present in the question. Please don't use articles (e.g., the, a) before the answer.

[EX Q]: The essay on microbiology was more interesting than the one written on statistics. _ must be an interesting subject.
[EX A]: microbiology

[EX Q]: It took James all the days of the month to finish the paintings because the _ are long.
[EX A]: paintings

[EX Q]: Josh wasn't sure whether to get .3 pencil lead or .5 pencil lead for his mechanical pencil, but he found out the _ was thicker.
[EX A]:
.5 pencil lead