Assertion: boron's effect | /r/HasProperty | headache
Facets:
Source sentences:
text: Possible side effects of boron include nausea, vomiting, headache, ingestion, and diarrhea.
text: Effects on the vascular system and human brain include headaches and lethargy, but are less frequent.
text: Effects on the vascular system and brain include headaches and lethargy, but are less frequent.