Assertion: circle | /r/HasProperty | point
Facets:
value: of from twelve to fifteen inches
type: OTHER
value: at the ordinary distance of vision
type: OTHER
Source sentences:
text: At the ordinary distance of vision, of from twelve to fifteen inches, circles of confusion are seen as points, if the angle subtended by them does not exceed one minute of arc, or roughly, if they do not exceed the 1/100 of an inch in diameter.