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.

They wondered if the blue powder or the red powder would dissolve faster, but they couldn't open the _ one.
blue

The doctor offered both herbs and pills to help with the pain, but the _ didn't work.
pills

The implants I got were made of silicone instead of fat. The _ was harder.

silicone