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:
Melanie would go sleepwalking when sleeping. The doctor prescribed pills. The _ was stressful for Melanie.

Ex Output:
sleeping


Ex Input:
The digger dug up the headstone but not the casket in the graveyard since the _ was worthless.

Ex Output:
casket


Ex Input:
After the loss of the raft, the crew took the lifeboat as the _ was newer anyway.

Ex Output:

lifeboat