A US-president may be diagnosed with a malignant (brain tumor).Logical formLearned from12 sentences. Solid tumors can be refractory.Logical formLearned from12 sentences. (Cell tumors) may pertain-to a mediastinum.Logical formLearned from12 sentences. (Brain tumors) may undergo a classification.Logical formLearned from12 sentences. A (brain tumor) can be undiagnosed.Logical formLearned from12 sentences. A tumor may shrink.Logical formLearned from12 sentences. Solid tumors may undergo a development.Logical formLearned from12 sentences. Tumors can be high-risk.Logical formLearned from12 sentences. A tumor may be excised.Logical formLearned from12 sentences. Tumors can be bronchial.Logical formLearned from12 sentences. Features may pertain-to a tumor.Logical formLearned from12 sentences. Tumor may undergo an extension.Logical formLearned from12 sentences. A tumor may invade.Logical formLearned from12 sentences. (Lung tumors) can be malignant.Logical formLearned from12 sentences. A female may be diagnosed with a tumor.Logical formLearned from12 sentences.