Assertion: toluene's effect | /r/HasProperty | headache
Facets:
Source sentences:
text: The effects of chronic (long-term) exposure to methylene chloride in humans involve the central nervous system, and include headaches, dizziness, nausea, and memory loss.
text: Serious nervous system effects include coma and the inability to breathe, while less serious effects include dizziness and headaches.