A chiefly aquatic plant that contains chlorophyll, but does not form embryos during development and lacks vascular tissue.
(Slot-Value-Type Alga Component Incoherent) (Slot-Value-Type Alga Developmental-Form Incoherent) (=> (Alga ?Self) (And (Exists (?A) (And (Lives-In ?Self ?A) (Water ?A))) (Exists (?B) (And (Component ?Self ?B) (Chlorophyll ?B)))))