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

Wildlife scientists confirmed on Thursday that a bird long thought extinct, the Ivory-billed woodpecker, has been found in Arkansas.
Wildlife scientists confirmed on Thursday that a bird long thought extinct , the Ivory-billed woodpecker , has been found in Arkansas .

The helicopter had been chartered from the Russian company Vertical-T and all the victims were civilians.
The helicopter had been chartered from the Russian company Vertical-T and all the victims were civilians .

United States Secretary of Energy, Samuel Bodman asked for Brooks' resignation because of issues including "serious security breaches" in several laboratories, including the Los Alamos National Laboratory.
United States Secretary of Energy , Samuel Bodman asked for Brooks ' resignation because of issues including '' serious security breaches '' in several laboratories , including the Los Alamos National Laboratory .