a {
  order: 1;
  @nest b & {
    order: 2;
  }
  @nest c & {
    order: 3;
  }
  @nest d & {
    order: 4;
  }
  @nest e & {
    order: 5;
  }
}
a {
  order: 1;
  @nest & b {
    order: 2;
  }
  @nest & c {
    order: 3;
  }
  @nest & d {
    order: 4;
  }
  @nest & e {
    order: 5;
  }
}

.rule-1 {
  order: 1;
  @media screen, print {
    order: 2;
    &.rule-2 {
      order: 3;
      @media (max-width: 30em) {
        order: 4;
        @nest .rule-prefix & {
          order: 5;
        }
        order: 6;
      }
      order: 7;
    }
    order: 8;
  }
  order: 9;
}

a, b {
  order: 1;
  & c, & d {
    order: 2;
    & e, & f {
      order: 3;
    }
    order: 4;
  }
  order: 5;
}
a, b {
  order: 1;
  @nest & c, & d {
    order: 2;
    @nest & e, & f {
      order: 3;
    }
    order: 4;
  }
  order: 5;
}

a {
  & b {
    & c {
      order: 1;
    }
  }
}
d {
  order: 2;
  & e {
    order: 3;
  }
}
f {
  & g {
    order: 4;
  }
  order: 5;
}
a {
  @nest & b {
    @nest & c {
      order: 1;
    }
  }
}
d {
  order: 2;
  @nest & e {
    order: 3;
  }
}
f {
  @nest & g {
    order: 4;
  }
  order: 5;
}

a, b {
  order: 1;
  c, d {
    order: 2;
  }
}
& e {
  order: 3;
}
f {
  & g & {
    order: 4;
  }
  &h {
    order: 5;
  }
}
a, b {
  order: 1;
  @nest c, d {
    order: 2;
  }
}
@nest & e {
  order: 3;
}
f {
  @nest & g & {
    order: 4;
  }
  @nest &h {
    order: 5;
  }
}

a {
  order: 1;
  @media (min-width: 100px) {
    order: 2;
    @media (max-width: 200px) {
      order: 3;
    }
    & b {
      @media (max-width: 200px) {
        order: 4;
      }
    }
  }
  @media screen, print and speech {
    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
      order: 5;
      & c {
        order: 6;
      }
    }
  }
}
a {
  order: 1;
  @media (min-width: 100px) {
    order: 2;
    @media (max-width: 200px) {
      order: 3;
    }
    @nest & b {
      @media (max-width: 200px) {
        order: 4;
      }
    }
  }
  @media screen, print and speech {
    @media (max-width: 300px), (min-aspect-ratio: 16/9) {
      order: 5;
      @nest & c {
        order: 6;
      }
    }
  }
}
a {
  order: 1;
  @nest very-very-very-very-very-very-very-very-very-long-selector &, very-very-very-very-very-very-very-very-very-long-selector & {
    order: 2;
  }
  @nest very-very-very-very-very-very-very-very-very-long-selector + very-very-very-very-very-very-very-very-very-long-selector  &, very-very-very-very-very-very-very-very-very-long-selector very-very-very-very-very-very-very-very-very-long-selector & {
    order: 2;
  }
}