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.
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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


Question: The flood gathered by the rain carried away the cart placed on the street because the _ is light.

Answer:
cart