Assertion: hydrogen sulfide's presence | /r/Causes | illness
Facets:
Source sentences:
text: While such concentrations are rare, hydrogen sulfide's presence in drinking water, when released in confined areas, has been known to cause nausea, illness and, in extreme cases, death.
text: While such concentrations are rare, hydrogen sulfide's presence in drinking water when released in confined areas has been known to cause nausea, illness and, in extreme cases, death.