\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Count the in-degree and out-degree:
  • \(\deg_{in}(P) =\)
    , \(\deg_{out}(P) =\)
  • \(\deg_{in}(Q) =\)
    , \(\deg_{out}(Q) =\)
  • \(\deg_{in}(R) =\)
    , \(\deg_{out}(R) =\)
  • \(\deg_{in}(S) =\)
    , \(\deg_{out}(S) =\)