Assertion: beryl's color | /r/HasProperty | red
Facets:
Source sentences:
text: The most attractive colors appear to be those which are pure and rich is hue, such as red, green, blue, purple, orange, and yellow.
text: Since the old Russian imperial colors were red and green it was named after Czar Alexandr II on the occasion of his coming of age in 1842.
text: Pure beryl is colorless, but it is frequently tinted by impurities; possible colors are green, blue, yellow, and red (the rarest).
text: Red beryl is an extremely rare variety of beryl that receives its red color from trace amounts of manganese.