As the double-decker boats get ready to leave the pier, bells ring, the gangplank is raised, deckhands in blue sailor suits man the hawsers, and a couple of hundred commuters begin a seven-minute sightseeing tour.
( ( ( ( ( ( ( ( ( ( As ( ( the ( double-decker boats ) ) ( get ( ready ( to ( leave ( the pier ) ) ) ) ) ) ) ( , ( bells ring ) ) ) , ) ( ( the gangplank ) ( is raised ) ) ) , ) ( ( deckhands ( in ( blue ( sailor suits ) ) ) ) ( man ( the hawsers ) ) ) ) , ) and ) ( ( ( a couple ) ( of ( hundred commuters ) ) ) ( begin ( a ( seven-minute ( sightseeing tour ) ) ) ) ) ) . )
(ROOT (S (S (SBAR (IN As) (S (NP (DT the) (JJ double-decker) (NNS boats)) (VP (VBP get) (ADJP (JJ ready) (S (VP (TO to) (VP (VB leave) (NP (DT the) (NN pier))))))))) (, ,) (NP (NNS bells)) (VP (VBP ring))) (, ,) (S (NP (DT the) (NN gangplank)) (VP (VBZ is) (VP (VBN raised)))) (, ,) (S (NP (NP (NNP deckhands)) (PP (IN in) (NP (JJ blue) (NN sailor) (NNS suits)))) (VP (VB man) (NP (DT the) (NNS hawsers)))) (, ,) (CC and) (S (NP (NP (DT a) (NN couple)) (PP (IN of) (NP (CD hundred) (NNS commuters)))) (VP (VBP begin) (NP (DT a) (JJ seven-minute) (NN sightseeing) (NN tour)))) (. .)))
You will know when the boats are ready to leave when the bells ring and the gangplank is raised.
( You ( ( will ( know ( when ( ( the boats ) ( are ( ready ( to ( leave ( when ( ( ( ( the ( bells ring ) ) and ) ( the gangplank ) ) ( is raised ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (MD will) (VP (VB know) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NNS boats)) (VP (VBP are) (ADJP (JJ ready) (S (VP (TO to) (VP (VB leave) (SBAR (WHADVP (WRB when)) (S (NP (NP (DT the) (JJ bells) (NN ring)) (CC and) (NP (DT the) (NN gangplank))) (VP (VBZ is) (VP (VBN raised)))))))))))))) (. .)))