Assertion: compost's material | /r/HasProperty | added
Facets:
value: usually
type: DEGREE
Source sentences:
text: Sawdust and straw or other carbon rich materials are usually added as well.
text: To destroy pathogens, thermophilic composting must heat the compost pile sufficiently, or enough time (1–2 years) must elapse since fresh material was added that biological activity has had the same pathogen removal effect.