In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

Example Input:  Inhibition of CD28 / CD3 - mediated costimulation of naive and memory human T lymphocytes by intracellular incorporation of polyclonal antibodies specific for the activator protein - 1 transcriptional complex .
Example Output: polyclonal antibodies

Example Input:  Cytotoxic T lymphocytes directed against well - characterized epitopes of EBV latency genes represent an already successful and promising therapeutic approach to EBV - associated lymphomas , in particular PTLDs
Example Output: EBV latency genes

Example Input:  The mRNA level of nm23 - H2 was slightly below the normal level .
Example Output:
nm23 - H2