In this case , amphibious vehicle detachments -- among them a Gulfport unit that went into action almost immediately in Mississippi -- were crucial because of their ability to swim or crawl over obstacles .
Mississippi /location/location/contains Gulfport
IN DT NN , JJ NN NNS : IN PRP DT NNP NN WDT VBD IN NN RB RB IN NNP : VBD JJ IN IN PRP$ NN TO VB CC VB IN NNS .
Mississippi
LOCATION
Gulfport
LOCATION
/location/location/contains