Before revision:  If a VQA system is able to answer a question , it should also be able to answer the logical composition of questions. We analyze the performance of state-of-the-art models on the VQA task under these logical operations and show that they have difficulty in correctly answering such questions.
After revision:  If a VQA system is able to answer a question , it should also be able to answer the logical composition of multiple such questions. When put under this state-of-the-art models on the VQA task under these logical operations and show that they have difficulty in correctly answering such questions.