sentence: In the reconquest age the stronghold never fell to a direct assault . Finally the Castellan 's army , after a long siege , forced the government to surrender it .
modified: In the reconquest age the stronghold never downfall with a direct assault , finally the Castellan 's army after a large siege force to the government surrender it .
transformation: K, VERB, PREP, PUNCT, K, PUNCT, ADJ, PUNCT, VERB:TENSE, PREP, VERB:FORM