Assertion: millet's stem | /r/HasProperty | hollow
Facets:
Source sentences:
text: Proso millet grows to about a 30-inch height, and the stems are hollow and coarse.
text: Grasses may be annual or perennial herbs,:10 generally with the following characteristics (the image gallery can be used for reference): The stems of grasses, called culms, are usually cylindrical (more rarely flattened, but not 3-angled) and are hollow, plugged at the nodes, where the leaves are attached.
text: Proso millet grows to a height of approximately 40 in. and has a hollow stem.