In this task, you will be given sentences in which your task is to recognize the name of the organ of the body. An organ is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Although there might be several correct answers, you need to write one of them.

[Q]: MR T ( 1 ) - weighted and T ( 2 ) - weighted images showed the tumor to be isointense to normal brain parenchyma and to be enhanced densely .
[A]: brain

[Q]: Epstein - Barr virus - associated nonsmall cell lung carcinoma : undifferentiated " lymphoepithelioma - like " carcinoma as a distinct entity with better prognosis .
[A]: lung

[Q]: Nine of 10 cases of primary GB malignancy were found to have high velocity arterial blood flow signals in the tumor masses .
[A]:
GB