In this task, you will be given sentences in which you have to recognize the name of the body cells. A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Although there might be several correct answers, you need to write one of them.

Example Input:  We also explored the mechanism of apoptosis by evaluating mitochondrial activity and reactive oxygen species ( ROS ) generation in cells treated with the ion pair .
Example Output: cells

Example Input:  Neurons were treated with ephrin - A5 - Fc for 30 min followed by visualization of GFP ( A , C , E ) or CA - MEK - 1 ( green in B , D , F ) , F - actin and betaIII tubulin .
Example Output: Neurons

Example Input:  Particularly Egr1 ( Fig . 6B ) and Egr2 ( Fig . 6C ) mRNA levels were almost identical when comparing neurons treated with BDNF alone and neurons with BDNF and ephrin - A5 together .
Example Output:
neurons

