shot out of a cannon into a vat of ice cream 
(ROOT (VP (VBD shot) (PP (IN out) (PP (IN of) (NP (DT a) (NN cannon)))) (PP (IN into) (NP (NP (DT a) (NN vat)) (PP (IN of) (NP (NN ice) (NN cream)))))))
(ROOT (VP (VBD ) (PP (IN ) (PP (IN ) (NP (DT ) (NN )))) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN ) (NN )))))))