( ( In ( areas ( ( ( where ( ( active research ) ( is ( being pursued ) ) ) ) and ) ( ( in which ) ( there ( ( is not ) ( ( a ( great deal ) ) ( of ( ( ( experimental or ) observational ) ( ( evidence and ) understanding ) ) ) ) ) ) ) ) ) ) ( , ( it ( ( ( is ( normal ( for scientists ) ) ) ( to ( ( differ ( with one ) ) ( another ( about ( ( the interpretation ) ( of ( ( the ( ( evidence or ) theory ) ) ( being considered ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NP (NNS areas)) (SBAR (SBAR (WHADVP (WRB where)) (S (NP (JJ active) (NN research)) (VP (VBZ is) (VP (VBG being) (VP (VBN pursued)))))) (CC and) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (EX there)) (VP (VBZ is) (RB not) (NP (NP (DT a) (JJ great) (NN deal)) (PP (IN of) (NP (ADJP (JJ experimental) (CC or) (JJ observational)) (NN evidence) (CC and) (NN understanding)))))))))) (, ,) (NP (PRP it)) (VP (VBZ is) (ADJP (JJ normal) (PP (IN for) (NP (NNS scientists)))) (S (VP (TO to) (VP (VB differ) (PP (IN with) (NP (CD one))) (NP (NP (DT another)) (PP (IN about) (NP (NP (DT the) (NN interpretation)) (PP (IN of) (NP (NP (DT the) (NN evidence) (CC or) (NN theory)) (VP (VBG being) (VP (VBN considered)))))))))))) (. .)))
In areas where active research is being pursued and in which there is not a great deal of experimental or observational evidence and understanding, it is normal for scientists to differ with one another about the interpretation of the evidence or theory being considered.
(ROOT (S (NP (DT A) (NN theory)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (NP (DT a) (JJ broad) (NN explanation)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN supported) (PP (IN by) (NP (NP (DT a) (JJ great) (NN deal)) (PP (IN of) (NP (NN evidence))))))))))))) (. .)))