Sentence:  The introduction of harness racing on Saturday nights at nearby Wayville in 1934 caused serious consequences for the rest of the 1930s as ‘the <WSD>trots</WSD>' regularly attracted crowds of 20 000. When the <WSD>trots</WSD> began to offer free admission to children accompanying their parents, the state Exhibitors′ Association, of which Thompson was then chair, tried to agitate against this on moral grounds. 
Meaning of the word marked with <WSD> tags:  A trotting race meet; harness racing.