Complex sentence: These two were initially numbered E96 and E97, but were later renumbered to E500 and E501, and they entered service in 1936 as South Africa's first purpose built electric shunting locomotives.
Split into simpler sentences: These two were initially numbered E96 and E97, but were later renumbered to E500 and E501. They entered service in 1936 as South Africa's first purpose-built electric shunting locomotives.