Assertion: moon's shape | /r/HasProperty | perfect
Facets:
Source sentences:
text: [The Moon] receives the perfect shapes in periods of 7 days--the half-Moon in the first 7 day period after its conjunction with the Sun, full Moon in the second; and when it makes its return again [= after the full Moon], the first is to half-Moon, then it ceases at its conjunction with the Sun . . .
text: Its shape is a perfect half circle, called the first quarter moon phase.
text: [The Moon] receives the perfect shapes in periods of 7 days . . .