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

Example Input: "We’re actively investigating the cause and are working to take the appropriate steps to remedy the situation as rapidly as possible."
Example Output: `` We 're actively investigating the cause and are working to take the appropriate steps to remedy the situation as rapidly as possible . ''

Example Input: A gene has been discovered that turns stem cells into cancer killers, promising new treatments that boost the body's ability to destroy tumors.
Example Output: A gene has been discovered that turns stem cells into cancer killers , promising new treatments that boost the body 's ability to destroy tumors .

Example Input: Mahameed believes contributions such as his are necessary to the Mideast peace effort.
Example Output:
Mahameed believes contributions such as his are necessary to the Mideast peace effort .