Assertion: bamboo's substance | /r/HasProperty | pumped through pipe
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Source sentences:
text: Paul D. Blanc, who teaches occupational and environmental medicine at the University of California, San Francisco, describes how viscose rayon is made: Bamboo or wood chips are soaked in carbon disulfide, and then the syrupy substance is pumped through a pipe and forced through a screen into a vat of sulfuric acid.