premise: The Friant-Kern Canal is a 152 mi Central Valley Project aqueduct managed by the United States Bureau of Reclamation in Central California to convey water to augment irrigation capacity in Fresno, Tulare, and Kern counties. Construction began in 1949 and the canal was completed in 1951, at a cost of $60.8 million.
hypothesis: The Friant-Kern Canal is more than 200 kilometers long.
reason: The context states that the Friant-Kern Canal is 152 miles long, which is definitely longer than 200 kilometers. I think that the system found it difficult to process this statement because it did not convert miles to kilometers when processing the information.