(S (S (NP (BASENP (DT The) (ADJP (RBS most) (JJ common)) (NN place)) (PP (IN for) (NP (BASENP (DT an) (JJ ectopic) (NN pregnancy)) (SBAR (S (VP (TO to) (VP (VB occur)))))))) (VP (VP (VBZ is) (BASENP (DT the) (NNP Fallopian) (NNS tubes))) (COMMA ,) (S (VP (VBG accounting) (PP (IN for) (NP (BASENP (QP (RB roughly) (NN 95)) (NN %)) (PP (IN of) (BASENP (DT all) (JJ ectopic) (NNS pregnancies))))))))) (PERIOD .))