Assertion: carotenoid | /r/HasProperty | rare
Facets:
value: in plants
type: LOCATION
value: in algae
type: LOCATION
value: with an exception in lettuce
type: OTHER
Source sentences:
text: Carotenoids with two ε-rings are rare in plants and algae, with an exception in lettuce, wherein a single ε-CYC adds two ε-rings to lycopene to form lactucaxanthin .