( ( ( These facts ) ( about languages ) ) ( ( call ( for ( scientific ( ( analysis and ) explanation ) ) ) ) . ) )
(ROOT (S (NP (NP (DT These) (NNS facts)) (PP (IN about) (NP (NNS languages)))) (VP (VBP call) (PP (IN for) (NP (JJ scientific) (NN analysis) (CC and) (NN explanation)))) (. .)))
These facts about languages call for scientific analysis and 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)))) (. .)))