Everybody feeds off one another. As far as race, that was not by design. They just happen to be some women, some African American. GiftOutline Gift Article Thats been a subject of study for some years now.
The people referred to in the text are all retired.
( z0 retire :ARG0 ( z1 person :ARG1-of ( z2 refer :medium ( z3 text ) ) :mod ( z4 all ) ) )
(z0 / retire-01
    :ARG0 (z1 / person
              :ARG1-of (z2 / refer-01
                           :medium (z3 / text))
              :mod (z4 / all)))
The people referred to in the text are all retired .
z1 :ARG1-of z2
z2 :medium z3
z1 :mod z4
z0 :ARG0 z1