The computer program may further include {HEAD ~ a code segment} for accessing services from {TAIL ~ remote service providers} 
The computer program may further include { HEAD ~ a code segment } for accessing services from { TAIL ~ remote service providers }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL