Assertion: comfrey's substance | /r/Synonym | allantoin
Facets:
Source sentences:
text: The plant contains a substance called 'allantoin', a cell proliferant that speeds up the healing process.
text: Comfrey’s fabulous actions are due to a substance called allantoin, found in the root and leaf of the comfrey plant.
text: The plant contains a substance called "allantoin", a cell proliferant that speeds up the healing process.