Assertion: asterism's star | /r/HasProperty | delta
Facets:
Source sentences:
text: Among the five main bright stars, Delta, and probably Alpha and Beta, are likely co-moving B-type members of the Scorpius–Centaurus Association, the nearest OB association to the Sun.
text: The stars that form the Northern Cross are Alpha, Beta, Gamma, Delta, and Epsilon Cygni.