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 Input:
She had a lower back pain but her headache was gone, so the _ problem was comforting her now.

Ex Output:
headache


Ex Input:
I bought several tiny cases for my son to put his models in, but they didn't fit because the _ were too small.

Ex Output:
cases


Ex Input:
The forks broke when Mike tried to eat the noodles, but the chopsticks didn't. The _ were made of metal.

Ex Output:

chopsticks