TASK DEFINITION: In this task, given a sentence in the English language, your task is to convert it into English Tokens.
PROBLEM: Approximately 300 young men were reportedly responsible for the attacks.

SOLUTION: Approximately 300 young men were reportedly responsible for the attacks .

PROBLEM: At its center, the depth of the earthquake had been measured at ten kilometers (6.2 miles).

SOLUTION: At its center , the depth of the earthquake had been measured at ten kilometers -LRB- 6.2 miles -RRB- .

PROBLEM: After his final Eurovision appearance he left the music industry and became a building contractor.

SOLUTION:
After his final Eurovision appearance he left the music industry and became a building contractor .