(S (S (BASENP (JJ Several) (NNS botanists)) (VP (VBP have) (VP (VBN confirmed) (NP (BASENP (PRP it)) (CONJP (IN along) (IN with)) (NP (DT the) (NP (QP (QP (RB nearly) (NN dozen)) (CC or) (RB so)) (BASENP (JJ other) (NNS plants)))))))) (PERIOD .))