Question: PROBLEM 4 ( 8 marks ) Write context - free grammars to describe ( generate ) the following languages over the alphabet { 0 ,

PROBLEM 4(8 marks) Write context-free grammars to describe (generate) the following languages over the alphabet {0,1}.
1. L1={w | w ends with 101}.
2. L2={w | w contains at least one 1 and at least one 0}.
3. L3={w | w is not equal to 01}.
4. L4={w | w contains no 00}.

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