Given the task definition and input, reply with output. In this task, given a sentence in the English language, your task is to convert it into English Tokens.

Seen in the photograph below is Lieutenant (Navy) Armstrong, the Executive Officer of RCSCC 18 Vanguard, in the background, are Vanguard cadets.
Seen in the photograph below is Lieutenant -LRB- Navy -RRB- Armstrong , the Executive Officer of RCSCC 18 Vanguard , in the background , are Vanguard cadets .