What is the formal charge on carbon in the following structure? 
Definitions:
Inactivated Poliovirus Vaccine
A vaccine made from poliovirus that has been killed or inactivated, used to prevent poliomyelitis.
Hodgkin Disease
A type of lymphoma, which is a cancer of the lymphatic system, characterized by the presence of Reed-Sternberg cells.
Petechiae
Small, red or purple spots on the body, caused by minor bleeding from broken capillary blood vessels.
Nontender Lymph Nodes
Lymph nodes that are not painful upon examination, potentially indicating a non-inflammatory condition.
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