Complex sentence: The 1904 New South Wales state election was held on 6 August 1904 for all of the 90 seats in the 20th New South Wales Legislative Assembly and it was conducted in single-member constituencies with a first past the post voting system.
Split into simpler sentences: The 1904 New South Wales state election was held on 6 August 1904. This election was for all of the 90 seats in the 20th New South Wales Legislative Assembly and it was conducted in single-member constituencies with a first past the post voting system.