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生成一个函数，根据歌手和专辑查找歌曲并生成含有作曲家信息的表格.

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songLookup[act_, album_] := Module[{actEntity, albumEntity, songs, composers}, actEntity = Interpreter["MusicAct"][act]; albumEntity = Interpreter["MusicAlbum"][album]; songs = EntityList[ EntityClass[ "MusicWork", {"AssociatedMusicActs" -> actEntity, "AssociatedMusicAlbums" -> albumEntity}]]; composers = EntityValue[songs, "Composers"]; Column[{albumEntity["Image"], Grid[Transpose[{songs, composers}], Background -> {Automatic, {{LightOrange, White}}}]}]]

部署使用内置诠释器识别 "MusicAct" 和 "MusicAlbum" 实体类型的简单语法.

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songGrammar = CloudDeploy[ GrammarRules[ {AnyOrder[ OptionalElement[ FixedOrder[ "songs" | "titles" | "tracks" | "tunes" | "recordings", OptionalElement["by" | "from"]]], act : GrammarToken["MusicAct"], FixedOrder[OptionalElement["from" | "on"], album : GrammarToken["MusicAlbum"]] ] :> songLookup[act, album]}]]

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GrammarApply[songGrammar, "tracks by Michael Jackson on Thriller"]

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GrammarApply[songGrammar, "Pink Floyd's Dark Side of the Moon"]

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