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:
When deciding between using the treadmill or the yoga mat for their exercise routine, Alex chose the _ because it was easy.
answer:
yoga mat


question:
The bottle spend the whole day to get cold in the refrigerator because the _ is small.
answer:
refrigerator


question:
The prescription ended up being worse than the generic medicine since the _ is efficient at treating the symptoms.
answer:

medicine