premise: Pedro has only visited Haiti, Rene has only visited Turkey, Lester has only visited Ecuador, Wesley has only visited Republic of the Congo, Steven has only visited Comoros, Bill has only visited Mozambique, Lonnie has only visited Chad, Brent has only visited Eritrea, Tracy has only visited Sweden, Henry has only visited Uganda, Ralph has only visited Saint Vincent & the Grenadines
hypothesis: Harry didn't visit Uganda