In turn, {HEAD ~ this movement} of the floor pan allows the seat to move in the same direction as the vehicle roof maintaining the distance between {TAIL ~ roof} and seat 
In turn , { HEAD ~ this movement } of the floor pan allows the seat to move in the same direction as the vehicle roof maintaining the distance between { TAIL ~ roof } and seat
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH