In this task, given a sentence in the English language, your task is to convert it into English Tokens.

[EX Q]: iPhone 4 pre-orders for current Verizon users begin February 3, and a public release is scheduled for February 10.
[EX A]: iPhone 4 pre-orders for current Verizon users begin February 3 , and a public release is scheduled for February 10 .

[EX Q]: "I know we haven't had much of a summer, but let's get it out of the way first".
[EX A]: `` I know we have n't had much of a summer , but let 's get it out of the way first '' .

[EX Q]: While driving his bar stool, which is powered by a lawnmower engine, Wygle attempted to make a U-turn while going down his street and crashed.
[EX A]:
While driving his bar stool , which is powered by a lawnmower engine , Wygle attempted to make a U-turn while going down his street and crashed .