Assertion: connected greenhouse | /r/HasProperty | economical
Facets:
value: usually
type: DEGREE
value: in a size
type: OTHER
Source sentences:
text: Gutter-connected greenhouses are usually most efficient and economical in a size of at least 10,000 sq ft.
text: Gutter-connected greenhouses are usually most efficient and economical in a size of at least 10,000 sq ft.