{"Person":"GF","Father":"RI","Mother":"RI"}
{"Person":"GM","Father":"RI","Mother":"RI"}
{"Person":"F1","Father":"GF","Mother":"GM"}
{"Person":"F2","Father":"GF","Mother":"GM"}
{"Person":"M1","Father":"RI","Mother":"RI"}
{"Person":"M2","Father":"RI","Mother":"RI"}
{"Person":"A","Father":"F1","Mother":"M1"}
{"Person":"B","Father":"F2","Mother":"M2"}