and change that has helped them to survive and flourish in the 20th century.
(them; to flourish; T:in the 20th century) (change; has helped; them to survive and flourish in the 20th century) Context(change has helped,List([4, 26))):(them; to survive; )
change has helped,List([4, 26))
them change them
to flourish has helped to survive
T:in the 20th century
them to survive and flourish in the 20th century