> Can we use the question rewritten by humans in the qrecc-test.json file or we should refrain from it and rewrite the questions on our own?

That’s ok to use the human or automated rewrites. We explicitly encourage to use the human rewrites actually to get the upper-bound performance on non-conversational task but you should indicate this explicitly in the submission so that we can compare apples to apples in the end. We will make a separate leaderboard to measure performance on non-conversational questions.