Question: 2. Consider the following context-free grammar: expression expression 4, term 1 term term factor ('expression'), I NUMBER term , factor I factor (for the following

2. Consider the following context-free grammar: expression expression 4, term 1

2. Consider the following context-free grammar: expression expression 4, term 1 term term factor "('expression'), I NUMBER term , factor I factor (for the following questions make sure that you show all backtracking steps) a. Draw a parse tree for the following input: 1+2 b. Draw a parse tree for the following input: (1+2)*3+4

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