node I
{
rate_up = 0.0;
rate_down = 0.0;
}

node A
{
logic = (I | A);
}

node L
{
logic = (A | L);
}
node R
{
rate_up =  $innerOn ? (L | R) : $outerL;
rate_down =  $innerOn ? (!(L | R)) : 0.0 ;
}
node T1
{
logic = ((A & (!T2)) | T1);
}
node T2
{
logic = ((R & (!A)) | T2);
}