What are the relationship between black sororities and fraternities?

Question

I mean the brother and sister relationship.

i already know that alpha phi alpha and aka are brother and sisters

i already kno that zeta phi beta and phi beta sigma are bros and sis

i think kappa alpha psi and delta sigma theta are bros and sis

and idk nothing bout sigma gamma rho and/or omega psi phi.

Please help

Answer 1

 Delta Sigma Theta and Omega Psi Phi and bro and sis

Sigma Gamma Rho and Kappa Alpha Psi and bro and sis

 

Answer 2

True... Though in 2006 the Sigmas and the Zetas lost that constitutionally bound because they didnt stand for the same thing