4. a) For the following SDD give annotated parse tree for the expression: i) (8+7 * (6 + 5) + 4) * 3 n PRODUCTION SEMANTIC RULES 1) L→EN L.val = E.val 2) E → E + T E.val = E.val+T.val 3) Е +T E.val = T.val 4) T→ T * F T.val = T1.val × F.val %3D 5) Т+F T.val = F.val %3D 6) F → (E) 7) F→ digit F.val = E.val %3D F.val = digit.lexval %3D

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