TASK DEFINITION: In this task, given a sentence in the English language, your task is to convert it into English Tokens.
PROBLEM: NASA has held a memorial ceremony to mark the fifth anniversary of the Space Shuttle Columbia disaster.

SOLUTION: NASA has held a memorial ceremony to mark the fifth anniversary of the Space Shuttle Columbia disaster .

PROBLEM: The total University population is growing much faster than the number of facilities required to support it, so expanding beyond the current campus makes sense.

SOLUTION: The total University population is growing much faster than the number of facilities required to support it , so expanding beyond the current campus makes sense .

PROBLEM: They also said that many dead bodies have been stashed in front of a Public Security Department office in Lhasa, the Tibetan capital where most of the unrest occurred.

SOLUTION:
They also said that many dead bodies have been stashed in front of a Public Security Department office in Lhasa , the Tibetan capital where most of the unrest occurred .