The spring is compressible such that {TAIL ~ a user} may depress the toilet seat to {HEAD ~ a flat position} when seated 
The spring is compressible such that { TAIL ~ a user } may depress the toilet seat to { HEAD ~ a flat position } when seated
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH