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Bottom-up parsing
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<p>In <a href="/facts/Computer_science/lN3pEyPz">computer science</a>, <a href="/facts/Parsing/nRKB01S3">parsing</a> reveals the grammatical structure of linear input text, as a first step in working out its meaning. Bottom-up parsing recognizes the text's lowest-level small details first, before its mid-level structures, and leaves the highest-level overall structure to last. </p>