Complex sentence: On 4 February 2013 the Federal Group announced that it would be terminating its lease of the railway in April 2013, the company citing a downturn in business and a need for investment in infrastructure had caused the railway to no longer be viable.
Split into simpler sentences: On 4 February 2013 the Federal Group announced that it would be terminating its lease of the railway in April 2013. The company said that a downturn in business and a need for investment in infrastructure had caused the railway to no longer be viable.