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

Example Input: AP reported that this is because there is a low oxygen level in the cellar.
Example Output: AP reported that this is because there is a low oxygen level in the cellar .

Example Input: The fire is considered the worst accident in the country's jail history.
Example Output: The fire is considered the worst accident in the country 's jail history .

Example Input: "But I couldn't stop the bleeding because there was so much blood."
Example Output:
'' But I could n't stop the bleeding because there was so much blood . ''