While {HEAD ~ box} 4 is meant to contain {TAIL ~ accessories} which are not shown, in box 5 a vessel 6 is positioned 
is meant to contain
While { HEAD ~ box } 4 is meant to contain { TAIL ~ accessories } which are not shown , in box 5 a vessel 6 is positioned
OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH