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: David Sive ( September 22 , 1922 – March 12 , 2014 ) was an American lawyer , environmentalist , and professor of environmental law .

SOLUTION: David Sive ( September 22 , 1922 – March 12 , 2014 ) was an attorney , environmentalist , and professor of environmental law , who has been recognized as a pioneer in the field of United States environmental law .

PROBLEM: In the " Prose Edda " book " Gylfaginning " , Elli defeats Thor in a wrestling match .

SOLUTION: In Norse mythology ( a subset of Germanic mythology ) , Elli ( Old Norse " old age " ) is a personification of old age who , in the " Prose Edda " book " Gylfaginning " , defeats Thor in a wrestling match .

PROBLEM: Although the Convention was called to revise the Articles of Confederation , it became clear from the beginning that many members , including James Madison and Alexander Hamilton , intended to create a new government rather than fix the existing one .

SOLUTION:
Although the Convention was intended to revise the league of states and first system of government under the Articles of Confederation , the intention from the outset of many of its proponents , chief among them James Madison of Virginia and Alexander Hamilton of New York , was to create a new government rather than fix the existing one .