A pool... that's always subject for debate between hubby and wife! (housegoeshome.com)
Exactly what that response should be is a fair subject for debate, but if we can at least establish the priority of developing such a response, we'll have taken an important step forward. (earthinbrackets.org)
And the belief in a supernatural being is a lagitamit subject for a debate. (religion.blogs.cnn.com)