( ( These plants ) ( ( are ( classified ( as ( ( angiosperms , ) ( which ( means ( they ( are ( flowering ( plants ( that ( produce ( seeds ( enclosed ( within ( ( a flower ) ( containing ovaries ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS plants)) (VP (VBP are) (ADJP (VBN classified) (PP (IN as) (NP (NP (NNS angiosperms)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ means) (SBAR (S (NP (PRP they)) (VP (VBP are) (VP (VBG flowering) (NP (NP (NNS plants)) (SBAR (WHNP (WDT that)) (S (VP (VBP produce) (NP (NP (NNS seeds)) (VP (VBN enclosed) (PP (IN within) (NP (NP (DT a) (NN flower)) (VP (VBG containing) (NP (NNS ovaries)))))))))))))))))))))) (. .)))
These plants are classified as angiosperms, which means they are flowering plants that produce seeds enclosed within a flower containing ovaries.
(ROOT (S (NP (NNS Angiosperms)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (VBG flowering) (NN seed) (NNS plants))))) (. .)))