More than 30,000 Cubans tried to cross shark-infested waters to Florida on improvised rafts.
Cubans used improvised rafts to try to get Florida because they wanted a better life.
mnli hypothesis: Cubans used improvised rafts to try to get Florida because they wanted a better life. premise: More than 30,000 Cubans tried to cross shark-infested waters to Florida on improvised rafts.