Given the following statements:
$S_1$: SLR uses follow information to guide reductions. In case of LR and LALR parsers, the look-aheads are associated with the items and they make use of the left context available to the parser.
$S_2$: LR grammar is a large subclass of context free grammar as compared to that SLR and LALR grammars.
Which of the following is true?
- $S_1$ is not correct and $S_2$ is not correct.
- $S_1$ is not correct and $S_2$ is correct.
- $S_1$ is correct and $S_2$ is not correct.
- $S_1$ is correct and $S_2$ is correct
