You will be given a definition of a task first, then some input of the task.
In this task, given a sentence in the English language, your task is to convert it into English Tokens.

The expansion is available as an online purchase in CD or digital download form through Stardock's gaming subsidiary, TotalGaming.net.
Output:
The expansion is available as an online purchase in CD or digital download form through Stardock 's gaming subsidiary , TotalGaming.net .