Complex sentence: Mark Ferguson (born 21 February 1966) is a news presenter with the Seven Network, presenting the weekend Sydney bulletin for "Seven News" and "Seven 4.30 News" on Thursday & Friday, due to Samantha Armytage's commitments with "Weekend Sunrise".
Split into simpler sentences: Mark Ferguson (born 21 February 1966) is a news presenter. Ferguson is currently presenting the weekend Sydney bulletin for "Seven News" in Sydney and "Seven 4.30 News" on Thursday & Friday, due to Samantha Armytage's commitments with "Weekend Sunrise".