&pos=1   &subject=""

s :=      "cat"         &pos=1   &subject="cat"
p :=         -5 FAILED  &pos=1   &subject="cat"
p :=         -4 FAILED  &pos=1   &subject="cat"
p :=         -3         &pos=1   &subject="cat"
p :=         -2         &pos=2   &subject="cat"
p :=         -1         &pos=3   &subject="cat"
p :=          0         &pos=4   &subject="cat"
p :=          1         &pos=1   &subject="cat"
p :=          2         &pos=2   &subject="cat"
p :=          3         &pos=3   &subject="cat"
p :=          4         &pos=4   &subject="cat"
p :=          5 FAILED  &pos=4   &subject="cat"
p :=          6 FAILED  &pos=4   &subject="cat"
s :=         ""         &pos=1   &subject=""
p :=         -2 FAILED  &pos=1   &subject=""
p :=         -1 FAILED  &pos=1   &subject=""
p :=          0         &pos=1   &subject=""
p :=          1         &pos=1   &subject=""
p :=          2 FAILED  &pos=1   &subject=""
p :=          3 FAILED  &pos=1   &subject=""
s :=    "donut"         &pos=1   &subject="donut"
p :=         -7 FAILED  &pos=1   &subject="donut"
p :=         -6 FAILED  &pos=1   &subject="donut"
p :=         -5         &pos=1   &subject="donut"
p :=         -4         &pos=2   &subject="donut"
p :=         -3         &pos=3   &subject="donut"
p :=         -2         &pos=4   &subject="donut"
p :=         -1         &pos=5   &subject="donut"
p :=          0         &pos=6   &subject="donut"
p :=          1         &pos=1   &subject="donut"
p :=          2         &pos=2   &subject="donut"
p :=          3         &pos=3   &subject="donut"
p :=          4         &pos=4   &subject="donut"
p :=          5         &pos=5   &subject="donut"
p :=          6         &pos=6   &subject="donut"
p :=          7 FAILED  &pos=6   &subject="donut"
p :=          8 FAILED  &pos=6   &subject="donut"
s :=        "x"         &pos=1   &subject="x"
p :=         -3 FAILED  &pos=1   &subject="x"
p :=         -2 FAILED  &pos=1   &subject="x"
p :=         -1         &pos=1   &subject="x"
p :=          0         &pos=2   &subject="x"
p :=          1         &pos=1   &subject="x"
p :=          2         &pos=2   &subject="x"
p :=          3 FAILED  &pos=2   &subject="x"
p :=          4 FAILED  &pos=2   &subject="x"

  &pos=1   &subject="outer"
  &pos=3   &subject="outer"
  &pos=1   &subject="inner"
  &pos=2   &subject="inner"
  &pos=3   &subject="outer"
&pos=3 x=4
&pos=4 x=3
&pos=3 x=9
&pos=3 x=3
&pos=3 x=9
&pos=3 x=3
&pos=1 x=3
&pos=1 x=2