YES 1 decompositions #0 ----------- 1: a() -> b() 2: a() -> c() 3: a() -> e() 4: b() -> d() 5: c() -> a() 6: d() -> a() 7: d() -> e() 8: g(x) -> h(a()) 9: h(x) -> e() @--testing feature-- --- R 3: a() -> e() 4: b() -> d() 5: c() -> a() 6: d() -> a() --- S 3: a() -> e() 4: b() -> d() 5: c() -> a() 6: d() -> a()