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.
Example: I have serious allergy in my left eye.
Example solution: eye
Example explanation: Eye is an organ which has been affected, hence should be tagged.

Problem: Although values that could be predictive of brain ischemia could not be established , an incomplete recovery or continuous decrease in PtiO2 values after definitive clipping should be considered an indicator of high risk for the development of post - operative brain infarction , and , therefore , an indication for verification of the position of the clip .
Solution: brain