premise: After the polio cases were identified, public health officials in the Dominican Republic and Haiti began giving the vaccines to large numbers of children. Public health officials now say the disease is under control and is not a public health threat.
hypothesis: After the poland cases were identified, public health officials in the Dominican Republic and Haiti began giving the vaccines to large numbers of children
reason: should be polio not poland so it is incorrect but all of the other words were the same and the AI didn't notice the change in the one word.