(S (S (S (BASENP (PRP He)) (VP (VBD was) (VP (VBN said) (S (VP (TO to) (VP (VB have) (VP (VBN chained) (NP (BASENP (DT the) (NN bike)) (PP (TO to) (BASENP (DT a) (JJ short) (NN bollard))))))))))) (SBAR (IN while) (S (BASENP (PRP he)) (VP (VP (VP (VBD picked) (PRT (RP up))) (BASENP (DT some) (NNS groceries))) (PP (IN in) (NP (BASENP (NNP Tesco)) (PP (IN on) (BASENP (NNP Portobello) (NNP Road))))))))) (PERIOD .))