Complex sentence: St James's Gate F.C. is an Irish football (soccer) was founded as the footballing part of the Guinness Sports and Social club and was named after the St James's Gate Brewery.
Split into simpler sentences: St James's Gate F.C. is an Irish football (soccer) club. The team was founded as the footballing part of the Guinness Sports and Social club and was named after the St James's Gate Brewery.