Thus, the vehicle can be converted into {TAIL ~ either a flatbed truck} or {HEAD ~ a semi trailer truck} 
Thus , the vehicle can be converted into { TAIL ~ either a flatbed truck } or { HEAD ~ a semi trailer truck }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD