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: John took a sip of the milk and spat it on the food in front of him. The _ is putrid.

A: milk
****
Q: The computer was stumped by the algorithm but solved the equation with ease, as the _ was so complex.

A: algorithm
****
Q: Brigitte's cat was dragging its rear legs so the vet said it needed physical therapy and massage. Brigitte gave her cat the _ herself.

A:
massage
****