(S (S (S (BASENP (NNP Sunderland)) (VP (VBD had) (VP (VBN been) (VP (VP (VBG sailing) (PP (IN amid) (NP (BASENP (DT a) (JJ rough) (NN storm)) (PP (IN in) (BASENP (DT the) (NNP Indian) (NNP Ocean)))))) (BASENP (JJ early) (NNP Thursday)))))) (SBAR (WHADVP (WRB when)) (S (BASENP (PRPD her) (NN boat)) (VP (VBD was) (VP (VBN flipped) (PRT (RP over))))))) (PERIOD .))