Mark was playing with Ross's fire engine and he said
Mark be play with Ross fire engine and he say
n:prop aux part prep adj n n coord pro:sub v
mark was playing with ross's fire engine and he said .
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m a r k WORD_BOUNDARY w a s WORD_BOUNDARY p l a y i n g WORD_BOUNDARY w i t h WORD_BOUNDARY r o s s ' s WORD_BOUNDARY f i r e WORD_BOUNDARY e n g i n e WORD_BOUNDARY a n d WORD_BOUNDARY h e WORD_BOUNDARY s a i d WORD_BOUNDARY