instruction:
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.
question:
The math tests were a lot more strenuous than the history quizzes, there the _ I failed.
answer:
tests


question:
The engineer created robots to replace the algorithms at solving the puzzle. The _ were more advanced.
answer:
robots


question:
The computer was stumped by the algorithm but solved the equation with ease, as the _ was so complex.
answer:

algorithm