Assertion: valerian's use | /r/HasProperty | difficult
Facets:
Source sentences:
text: The census uses of the plant that has ceased to be used over the centuries is difficult as he was awarded the "virtues": a brief overview of the medical field works and therapeutic - or medical botany - published for the only nineteenth century (online at Gallica), shows that doctors attributed to him various properties, often contradictory - a real "cure-all" herb of all evil.