instruction:
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.
question:
James could hardly see his direction in the room until he got outdoor because the _ is bright.
answer:
outdoor


question:
The sound of the speaker put a crack on the window close to it because the _ is too strong.
answer:
sound


question:
To ensure a healthy smile, Jason replaced with toothbrush with an electric brush. The _ requires more effort.
answer:

toothbrush