The article 1 wherein {HEAD ~ the front seating area} has a generally rounded semi elliptical shape and the rear seating area has {TAIL ~ a generally rounded semi elliptical shape} 
The article 1 wherein { HEAD ~ the front seating area } has a generally rounded semi elliptical shape and the rear seating area has { TAIL ~ a generally rounded semi elliptical shape }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL