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 Q]: He used a harness instead of a collar on his dog because the _ didn't choke the dog when it pulled.
[EX A]: harness

[EX Q]: Billy wanted to prevent having his radiator overheat in the desert sun so he added water but the _ was too little.
[EX A]: water

[EX Q]: For Beth, applying eyeliner to her eyes was more difficult than applying lipstick to her lips because using the _ was more difficult to have a perfect application.
[EX A]:
eyeliner