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.

The doctor said to get the wheelchair and not the gurney because the _ was adequate for her condition.
wheelchair

I used a battery to take pictures with the camera and put them in an album until the _ needed charging.
battery

The business relationships between the various companies were starting to be strained because the _ were not authentic.

companies