He goes to mass each Sunday, so he must be a Catholic. If John were a Catholic, he would go to mass each Sunday. He goes to mass each Sunday, so he must be a Catholic. If John were a Catholic, he would go to mass each Sunday. He goes to mass each Sunday, so he must be a Catholic.
Brazil has a huge foreign debt.
Therefore either Brazil or Argentina has a huge foreign debt. Brazil has a huge foreign debt. Therefore either Brazil or Argentina has a huge foreign debt. Brazil has a huge foreign debt. Therefore either Brazil or Argentina has a huge foreign debt.