Add punctuation: h is also referred to as the helpful mode
A: +h is also referred to as the "helpful" mode.

Add punctuation: After leaving Florence Pacioli went to Venice where he was given the sole rights to publish his works there for the following fifteen years
A: After leaving Florence, Pacioli went to Venice where he was given the sole rights to publish his works there for the following fifteen years.

Add punctuation: If a car seat is being used onboard for a child over 2 years then the booking can be made on our website but you will need to contact us to add the car seat details and allocate a suitable seat onboard
A:
If a car seat is being used onboard for a child over 2 years then the booking can be made on our website, but you will need to contact us to add the car seat details and allocate a suitable seat onboard.