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