Construct SLR Parse table problems Consider the augmented grammar G is:

S` -&gt; S
S -&gt; a
S -&gt; (T)
T -&gt; T,S
T -&gt; S


I have tried to construct parse table. But, when I read '(' nonterminal Symbol (item 3), there is no action table elements either 'shift' or 'reduce'.

I3:
S -&gt; (.T)
T -&gt; .T,S
T -&gt; .S


so I can't construe '(a,(a,a))' in this Parse table.
then is it ambiguous grammar? or I wrong the answer?
I3 productions are:
S->(.T)
T->.T,S
T->.S
here you need to add closure of S
S->.a
S->.(T)