[request_definition]
r = sub, obj, act
r2 = sub, obj

[policy_definition]
p = sub, obj, act, eft

[role_definition]
g = _, _

[policy_effect]
e = priority(p.eft) || deny

[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
m2 = g(r2.sub, p.sub)