premise: The Argentine motorcycle Grand Prix is the Argentine round of the FIM Grand Prix motorcycle racing championship. The Grand Prix returned in 2014 with a race at Autódromo Termas de Río Hondo. Previously, the event was held ten times at the Autódromo Oscar Alfredo Gálvez in the capital city of Buenos Aires between 1961 and 1999.
hypothesis: The Argentine motorcycle Grand Prix was held less than 10 times before the 2014 race.
reason: It was held exactly ten times, not less than 10 times. The system did not pick up on the "less than" part.