Question: Consider the grammar G1 that is shown below: G1: * ::= + | ::= * | ::= ( ) | a | b | c

Consider the grammar G1 that is shown below:

G1: * ::= + |

::= * |

::= ( )

| a | b | c

1. Show that your extended grammar can derive the following sentences:

- a+b == b

- a == b == c

2. With the modifications you made to this grammar, is this grammar G1 ambiguous? Why or why not?

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