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:  Multiple phosphotyrosine phosphatase mRNAs are expressed in the human lung fibroblast cell line WI - 38 .

A: lung
****
Q:  Abrupt hypertension increased blood flow to all brain regions .

A: brain
****
Q:  Evaluation of various heart rate correction factors for the QT interval versus the R - R interval .

A:
heart
****