The seat is not attached to {HEAD ~ the spring} such that the seat can be lifted to {TAIL ~ an upright position} in a traditional manner 
The seat is not attached to { HEAD ~ the spring } such that the seat can be lifted to { TAIL ~ an upright position } in a traditional manner
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH