Overview of the data collection pipeline. First (CQW, §3.1), a worker is presented with a term (T) and an expected answer (A) and writes a question (Q) and the facts (F1, F2) required to answer it. Next, the question is decomposed (SQD, §3.2) into steps (S1, S2) along with Wikipedia page titles (P1, P2) that the worker expects to find the answer in. Last (EVM, §3.3), decomposition steps are matched with evidence from Wikipedia (E1, E2).
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