Definition: In this task, given a sentence in the English language, your task is to convert it into English Tokens.
Input: Archipelago and Instinet are innovative e-trading (electronic trading) companies, and formerly were the two largest American rivals to NYSE and NASDAQ, in recent years taking increasingly large portions of their market share.
Output:
Archipelago and Instinet are innovative e-trading -LRB- electronic trading -RRB- companies , and formerly were the two largest American rivals to NYSE and NASDAQ , in recent years taking increasingly large portions of their market share .