sel
s
X
cons
Y
Z
sel
X
activate
Z
sel
0
cons
X
Z
X
first
0
Z
nil
first
s
X
cons
Y
Z
cons
Y
n__first
X
activate
Z
from
X
cons
X
n__from
n__s
X
sel1
s
X
cons
Y
Z
sel1
X
activate
Z
sel1
0
cons
X
Z
quote
X
first1
0
Z
nil1
first1
s
X
cons
Y
Z
cons1
quote
Y
first1
X
activate
Z
quote
n__0
01
quote1
n__cons
X
Z
cons1
quote
activate
X
quote1
activate
Z
quote1
n__nil
nil1
quote
n__s
X
s1
quote
activate
X
quote
n__sel
X
Z
sel1
activate
X
activate
Z
quote1
n__first
X
Z
first1
activate
X
activate
Z
unquote
01
0
unquote
s1
X
s
unquote
X
unquote1
nil1
nil
unquote1
cons1
X
Z
fcons
unquote
X
unquote1
Z
fcons
X
Z
cons
X
Z
first
X1
X2
n__first
X1
X2
from
X
n__from
X
s
X
n__s
X
0
n__0
cons
X1
X2
n__cons
X1
X2
nil
n__nil
sel
X1
X2
n__sel
X1
X2
activate
n__first
X1
X2
first
activate
X1
activate
X2
activate
n__from
X
from
activate
X
activate
n__s
X
s
activate
X
activate
n__0
0
activate
n__cons
X1
X2
cons
activate
X1
X2
activate
n__nil
nil
activate
n__sel
X1
X2
sel
activate
X1
activate
X2
activate
X
X
sel
2
s
1
cons
2
activate
1
0
0
first
2
nil
0
n__first
2
from
1
n__from
1
n__s
1
sel1
2
quote
1
first1
2
nil1
0
cons1
2
n__0
0
01
0
quote1
1
n__cons
2
n__nil
0
s1
1
n__sel
2
unquote
1
unquote1
1
fcons
2
FULL
./TRS/TRCSR/Ex6_15_AEL02_FR.trs