{HEAD ~ The pumping apparatus} is bouyant and comprises {TAIL ~ a barge structure} carrying a compression system having a plurality of pumping units disposed substantially colinearly along the length of the barge structure 
comprises
{ HEAD ~ The pumping apparatus } is bouyant and comprises { TAIL ~ a barge structure } carrying a compression system having a plurality of pumping units disposed substantially colinearly along the length of the barge structure
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH