Question: We have this grammar: T -> W W -> X | Y X -> (Y) Y -> X + Y | Z Z -> 2

We have this grammar: T -> W

W -> X | Y

X -> (Y)

Y -> X + Y | Z

Z -> 2 | 1 If any of these other rules are added, which ones would make the grammar above to be left-recursive and why?

1. X -> Y

2. Z -> X

3. W -> Z

4. Z -> A

5. Y -> 2Y

6. Y -> Y + X

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