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

[EX Q]: This maternal lineage is now present in all modern polar bears."
[EX A]: This maternal lineage is now present in all modern polar bears . ''

[EX Q]: "I want to apologise to them [the children] but I can't regret what I did because it would mean that he [Materazzi] was right to say what he said".
[EX A]: `` I want to apologise to them [ the children ] but I ca n't regret what I did because it would mean that he [ Materazzi ] was right to say what he said '' .

[EX Q]: Mandushev went on to say, "Because of the planet's relatively weak pull on its upper atmosphere, some of the atmosphere probably escapes in a comet-like tail."
[EX A]:
Mandushev went on to say , `` Because of the planet 's relatively weak pull on its upper atmosphere , some of the atmosphere probably escapes in a comet-like tail . ''