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

Mandela has been hospitalised three times since the start of last year.
Mandela has been hospitalised three times since the start of last year .

The sheep researchers postulate that low levels of aromatase hormones in the brain of a developing male sheep fetus may have kept the brain from fully masculinizing, leading to sexually male-oriented rams.
The sheep researchers postulate that low levels of aromatase hormones in the brain of a developing male sheep fetus may have kept the brain from fully masculinizing , leading to sexually male-oriented rams .

He will officially become the Philippines's fifteenth president on June 30.

He will officially become the Philippines 's fifteenth president on June 30 .

