Assertion: lichen's alga | /r/HasProperty | cyanobacterium
Facets:
Source sentences:
text: The life forms are composed of a fungus (kingdom Fungi) and most often a green alga (kingdom Protoctista) and/or a cyanobacterium (kingdom Monera).
text: The alga can be either a green alga or a blue-green alga, otherwise known as cyanobacteria.