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.

[Q]: Jane was starring at the sea until the sun set behind it and now just the _ is invisible.
[A]: sun


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


[Q]: Meditation requires relaxation in an area you feel comfortable like an armchair but not a bed because the _ may make you focused.
[A]:
armchair