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

Input: Consider Input: Democrats Hillary Clinton and Barack Obama were also campaigning in the state on Thursday.

Output: Democrats Hillary Clinton and Barack Obama were also campaigning in the state on Thursday .


Input: Consider Input: While pilots were troubleshooting for this navigational system they first unintentionally disconnected the autopilot, then failed to monitor other instruments informing them they were approaching the sea, crashing into it and destroying the aircraft.

Output: While pilots were troubleshooting for this navigational system they first unintentionally disconnected the autopilot , then failed to monitor other instruments informing them they were approaching the sea , crashing into it and destroying the aircraft .


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


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


