input: In the afternoon we can expect clouds with local snowfall The night will bring cloudy but mainly dry weather
fixed: In the afternoon we can expect clouds with local snowfall. The night will bring cloudy, but mainly dry weather.

input: 50 cc machines back then were not specialized speedway bikes but street bicycles fitted with small engines and the riders were not teenagers but adults fully equipped in leather suits The top speed has been about 30 to 35 kph
fixed: 50 cc machines back then were not specialized speedway bikes, but street bicycles fitted with small engines, and the riders were not teenagers, but adults fully equipped in leather suits. The top speed has been about 30 to 35 kph.

input: For they have shed the blood of saints and prophets and thou hast given them blood to drink for they are worthy
fixed: For they have shed the blood of saints and prophets, and thou hast given them blood to drink; for they are worthy.

input: This need not be a real live user at a terminal but could also be an automated program often called a bot
fixed:
This need not be a "real" live user at a terminal but could also be an automated program, often called a bot.