Assertion: comfrey's alkaloid | /r/HasProperty | honey
Facets:
Source sentences:
text: Human poisonings with pyrrolizidine alkaloids are usually accidental and may be caused by ingestion of contaminated flour, milk, certain goat products that are resistant to the alkaloids, honey produced by bees fed on pyrrolizidine-containing weeds, and consumption of certain herbal or bush teas.