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

[Q]: Li is also concerned about the rule which prohibits the entering of the first-class carriage without buying a ticket.
[A]: Li is also concerned about the rule which prohibits the entering of the first-class carriage without buying a ticket .


[Q]: The final leader's declaration said that APEC member economies will support the Doha trade talks and that the leaders examined a series of measures to deal with terrorism, pandemics, contaminated food, energy security and natural disasters.
[A]: The final leader 's declaration said that APEC member economies will support the Doha trade talks and that the leaders examined a series of measures to deal with terrorism , pandemics , contaminated food , energy security and natural disasters .


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