def iso_name_converter(iso):
sp = iso.split('<STR_LIT:->')<EOL>output = sp[<NUM_LIT:1>] + sp[<NUM_LIT:0>]<EOL>return output.lower()<EOL>
Converts the name of the given isotope (input), e.g., 'N-14' to
14N as used later to compare w/ grain database.