% test file 2 (assg 5, part b)

<SYMBOLS>
a
b
c
c'
e
</SYMBOLS>

<STRUCTURE>
S: A B
</STRUCTURE>


<RULES>
S: 
a b -> e[out]

A:
c a -> c a[out]

B:
c' b -> c' b[out]
</RULES>

<INIT>
S:

A: 
200*a
c

B:
300*b
2*c'
</INIT>

<TRACE>
S: [a] [b] a b 
A: c a
B: c' b
</TRACE>