Assertion: smoke's chemical | /r/HasProperty | released into the air
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Source sentences:
text: Chemicals such as benzene, formaldehyde, vinyl chloride, arsenic ammonia, hydrogen cyanide, and carbon monoxide are released into the air as a result of secondhand smoke.﻿﻿ While smokers inhale these poisonous substances directly, nonsmokers nearby do so in an indirect manner due to the chemicals' presence in the air around them.