Assertion: arnica's sesquiterpene lactone | /r/HasProperty | a chemical compound
Facets:
Source sentences:
text: The herb contains sesquiterpene lactones (a chemical compound known to reduce inflammation and decrease pain), arnicin, arnisterol (arnidiol), flavonoids (isoquercitrin, luteolin-7-glucoside, astragalin, and anthoxanthine), tannin, resin, and manganese.