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