TASK DEFINITION: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
PROBLEM: The Massachusetts Bay Transit Authority ( usually called the MBTA or " the T " ) is Massachusetts ' public transportation system .

SOLUTION: The Massachusetts Bay Transportation Authority ( abbreviated MBTA and known colloquially as " the T " ) is the public agency responsible for operating most public transportation services in Greater Boston , Massachusetts .

PROBLEM: The earliest of these are the chambered tombs , although later came the building of stone circles , a trend that would continue into the following Bronze Age .

SOLUTION: The earliest of these are the chambered tombs of the Early Neolithic , although in the Late Neolithic this form of monumentalization was replaced by the construction of stone circles , a trend that would continue into the following Bronze Age .

PROBLEM: Sally Lowenthal ( born February 25 , 1935 ) , better known as Sally Jessy Raphael , is an American former talk show host .

SOLUTION:
Sally Lowenthal ( born February 25 , 1935 ) , better known as Sally Jessy Raphael , is an American former talk show host known for her talk show program " Sally " ( originally titled " The Sally Jessy Raphael Show " ) .