( ( Prokaryote ( ( A ( single-cell organism ) ) ( that ( has ( no ( distinct nucleus ) ) ) ) ) ) . )
(ROOT (S (VP (VB Prokaryote) (NP (NP (DT A) (JJ single-cell) (NN organism)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (NP (DT no) (JJ distinct) (NN nucleus))))))) (. .)))
Prokaryote A single-cell organism that has no distinct nucleus.
(ROOT (S (NP (JJ Single-celled) (NNS organisms)) (VP (VBP are) (ADJP (JJ prokaryotes))) (. .)))