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 Input:  Heart sound and electrocardiogram recording devices for telemedicine environments .
Example Output: Heart

Example Input:  The findings of the current study suggest that EBV infection may play a different role in the tumorigenesis of primary LE of the lung than it does in other EBER1 - positive NSCLCs .
Example Output: lung

Example Input:  Abdominal approach for the ligation of bleeding oesophageal varices .
Example Output:
oesophageal