{HEAD ~ The water transport unit} includes {TAIL ~ a moisture} donating fluid channel and a moisture accepting fluid channel, where the latter is fluidly connected with a portion of the fuel cell that is in need of humidification 
includes
{ HEAD ~ The water transport unit } includes { TAIL ~ a moisture } donating fluid channel and a moisture accepting fluid channel , where the latter is fluidly connected with a portion of the fuel cell that is in need of humidification
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH