坐 (zuò)在 (zài)这个 (zhè ge)房间 (fáng jiān)里 (lǐ)的 (de)某 (mǒu)个 (gè)人 (rén)就是 (jiù shì)幕后 (mù hòu)主 (zhǔ)使 (shǐ)
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