{HEAD ~ The computer} 1 wherein {TAIL ~ the housing} has a spherical shape, and wherein the door has a spherical shape that coincides with the spherical shape of the housing 
wherein
{ HEAD ~ The computer } 1 wherein { TAIL ~ the housing } has a spherical shape , and wherein the door has a spherical shape that coincides with the spherical shape of the housing
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL 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 OTH OTH OTH