( But ( anthropologists ( ( counter ( that ( ( evolution ( in fact ) ) ( is ( the ( only ( scientific explanation ) ) ) ) ) ) ) . ) ) )
(ROOT (S (CC But) (NP (NNS anthropologists)) (VP (VBP counter) (SBAR (IN that) (S (NP (NP (NN evolution)) (PP (IN in) (NP (NN fact)))) (VP (VBZ is) (NP (DT the) (RB only) (JJ scientific) (NN explanation)))))) (. .)))
But anthropologists counter that evolution in fact is the only scientific explanation.
(ROOT (S (NP (PDT All) (NP (JJ scientific) (NNS explanations)) (CC and) (NP (NNS interpretations))) (VP (VBN based) (PP (IN on) (NP (NNS facts)))) (. .)))