def RfirstB(To):
    return idaapi.get_first_cref_to(To)
Takes a token and returns the synsets for
dataset/ETHPy150Open EiNSTeiN-/idapython/python/idc.py/RfirstB--crossover with--dataset/ETHPy150Open gunthercox/ChatterBot/chatterbot/utils/word_net.py/Wordnet.synsets