TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: Who described Kublai's China to the Far East, oh no make that to Europe?

SOLUTION: Who described Kublai's China to Europe?

PROBLEM: What antigens do Helper T cells not recognize no sorry what co-receptor recruits molecules inside the T cell that are responsible for cell activation?

SOLUTION: What co-receptor recruits molecules inside the T cell that are responsible for cell activation?

PROBLEM: Who rather what was abolished during the apartheid era?

SOLUTION:
What was abolished during the apartheid era?