Question: in fact it was through nasmyth that mary first became interested in mathematics.
Answer: --> In fact it was through Nasmyth that Mary first became interested in mathematics.

Question: serena williams is the younger sister of venus, known as the famous williams sisters. thirty-year american career began in 1995.
Answer: --> Serena Williams is the younger sister of Venus, known as the famous Williams sisters. Thirty-year American career began in 1995.

Question: this farce should end: they should be freed.
Answer:
--> This farce should end: They should be freed.