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

The breakthrough involves a gene known as TRESK, thought to control the brain's reaction to pain: if it is defective, then many normal activities and actions will be painful.
The breakthrough involves a gene known as TRESK , thought to control the brain 's reaction to pain : if it is defective , then many normal activities and actions will be painful .

At the time, there were about 50 people inside, mostly families with children.
At the time , there were about 50 people inside , mostly families with children .

He further claimed that people have said to him that "they're really pushing the Iran thing."

He further claimed that people have said to him that `` they 're really pushing the Iran thing . ''

