Assertion: manhole | /r/HasProperty | round
Facets:
value: usually
type: DEGREE
Source sentences:
text: Manholes are usually round, primarily because roundness is the best shape to resist the compression of the earth; covers are round because they are easier to manufacture than square or rectangular shapes, they are easier to move by rolling, and they can't fall into the opening.
text: Manholes, which are typically round steel lids, provide access to these areas.
text: Originally meant as a psychological assessment of how one approaches a question with more than one correct answer, the problem has produced a number of alternative explanations, from the tautological ("Manhole covers are round because manholes are round.") to the philosophical.
text: I altered the text to remove the suggestion that most manholes are round because this is not the case in most countries I have been to outside of North America.