l. Consider the following grammar: S'S B b a. b. c. Construct the conical collection of set LR(1) items form this grammar. Derive the Action and Goto tables. Is this grammar LR(I)? a robot arm that accepts two commands, puts an apple in the 2. Consider bag and takes an apple out of the bag. Assume the robot arm starts with an empty bag. A valid command sequence for the robot arm should have no prefix that contains more commands than commands. As examples, and are valid command sequences, but and 4are not. a. Write an LR(1) grammar that represents all the value command sequences for the robot arm. b. Prove the grammar is LRO). DR