(Carbon monoxide) may undergo measurements.Logical formLearned from18 sentences. (Carbon emissions) may contribute to global warming.Logical formLearned from18 sentences. (Carbon dioxide emissions) may increase.Logical formLearned from18 sentences. The atmosphere can be (carbon dioxide).Logical formLearned from18 sentences. A tax can be on a (carbon content) of fuels.Logical formLearned from18 sentences. Carbon can be voluntary.Logical formLearned from18 sentences. Some men may die of (carbon monoxide poisoning).Logical formLearned from18 sentences. (Carbon trading) can be in a country.Logical formLearned from18 sentences. A male can be (carbon copy).Logical formLearned from18 sentences. Cylinders can be constituted-of-or-filled-with carbon.Logical formLearned from18 sentences. Some (carbon atoms) may be bonded.Logical formLearned from18 sentences. (Carbon fiber hood) can be with (hood pins).Logical formLearned from18 sentences. (Carbon dioxide) may stay in the atmosphere.Logical formLearned from18 sentences. Global warming may be caused by (carbon dioxide).Logical formLearned from18 sentences. A male may die of (carbon monoxide poisoning).Logical formLearned from18 sentences.