{HEAD ~ An announcer} will explain knowledgeable information in regard to {TAIL ~ the area} through which the train travels 
{ HEAD ~ An announcer } will explain knowledgeable information in regard to { TAIL ~ the area } through which the train travels
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH