The billionaire chief executive of SoftBank , Masayoshi Son , is unlikely to back away from a fight .
Masayoshi Son /business/person/company SoftBank
DT NN NN NN IN NNP , NNP NNP , VBZ JJ TO VB RB IN DT NN .
Masayoshi Son
PERSON
SoftBank
ORGANIZATION
/business/person/company