{HEAD ~ A pipeline} for conducting air for air conditioning in aircrafts includes {TAIL ~ a body portion} formed with foamed plastics material or with a dense plastics material 
includes
{ HEAD ~ A pipeline } for conducting air for air conditioning in aircrafts includes { TAIL ~ a body portion } formed with foamed plastics material or with a dense plastics material
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH