HERD1 HERD1 1.000000
HERD1 HERD2 0.474341
HERD1 HERD3 -0.376776
HERD2 HERD1 0.474341
HERD2 HERD2 1.000000
HERD2 HERD3 -0.555147
HERD3 HERD1 -0.376776
HERD3 HERD2 -0.555147
HERD3 HERD3 1.000000