( ( In ( phylogeny reconstruction ) ) ( , ( ( ( ( ( the ( contemporary ( or ( hypothetical ( ancestral strain ) ) ) ) ) , ) ( ( species or ) whatever ) ) , ) ( ( is ( known ( as ( a taxon ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (JJ phylogeny) (NN reconstruction))) (, ,) (NP (NP (DT the) (JJ contemporary) (CC or) (JJ hypothetical) (NN ancestral) (NN strain)) (, ,) (NP (NNS species) (CC or) (NNS whatever)) (, ,)) (VP (VBZ is) (VP (VBN known) (PP (IN as) (NP (DT a) (NN taxon))))) (. .)))
In phylogeny reconstruction, the contemporary or hypothetical ancestral strain, species or whatever, is known as a taxon.
(ROOT (S (NP (NNP Phylogeny)) (VP (VBZ is) (NP (NP (DT the) (NN science)) (SBAR (WHNP (WDT that)) (S (VP (VBZ describes) (NP (NP (DT the) (ADJP (JJ ancestral) (CC and) (JJ descendant)) (NNS connections)) (PP (IN between) (NP (NNS organisms))))))))) (. .)))