Complex sentence: John Smith's Brewery in Tadcaster, North Yorkshire, England, produces beers including John Smith's, the biggest selling bitter in the United Kingdom since the mid- 1990s.
Split into simpler sentences: John Smith's Brewery was a brewing company in Tadcaster, North Yorkshire, England. The brewery still produces beer, including John Smith's, the biggest selling bitter in the United Kingdom since the mid- 1990s.