( Yeast ( ( is ( ( an example ) ( of ( a ( single ( celled fungi ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Yeast)) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (DT a) (JJ single) (JJ celled) (NNS fungi))))) (. .)))
Yeast is an example of a single celled fungi.
(ROOT (S (NP (NNP Single-celled)) (VP (VBP are) (ADJP (JJ yeasts))) (. .)))