premise: Christian has only visited Brunei, Tim has only visited Gambia, Roland has only visited Palau, Wade has only visited Iran, Ross has only visited Slovenia, Calvin has only visited Ukraine, Perry has only visited Lithuania, Shane has only visited Armenia, Gerald has only visited Madagascar, Warren has only visited Tuvalu, David has only visited Poland, Lawrence has only visited Saint Kitts & Nevis
hypothesis: Lawrence didn't visit Saint Kitts & Nevis