Assertion: moss's structure | /r/HasProperty | thick
Facets:
value: often
type: TEMPORAL
value: usually
type: DEGREE
value: only a single cell layer
type: OTHER
Source sentences:
text: They have leaf-like structures or phyllids that are usually only a single cell layer thick.
text: They also have small leaf-like structures that are attached spirally around the stem and often are only one cell layer thick.