(S (S (NP (BASENP (NNP Asherman) (POS 's)) (NN syndrome)) (VP (VBZ is) (VP (ADVP (RB normally)) (VP (VBN caused) (PP (IN by) (NP (NP (BASENP (DT a) (NN trauma)) (PP (TO to) (BASENP (DT the) (NN uterus)))) (SBAR (WHNP (WDT that)) (S (VP (VBZ results) (PP (IN in) (BASENP (JJ internal) (NN scar) (NN tissue)))))))))))) (PERIOD .))