Assertion: viral pneumonia | /r/CapableOf | produce transparent or white phlegm
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Source sentences:
text: Viral pneumonia differs from bacterial pneumonia in that it usually starts more suddenly, produces a more transparent or white phlegm, in addition to having other signs of viral infection, such as nasal congestion, sinusitis, eye irritation and sneezing, for example, however, it can be difficult to differentiate between the 2 types of infection, without doing any tests.