Given the grammar below: E → EE* | EE -|y E- EEEE a. Construct the set of SLR items for the grammar b. Compute the GOTO function for these sets of items c. Provide the SLR automaton d. Provide the parsing table for the grammar e. Parse the input string yy - y*
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- Convert Context-free grammar to CNF.X→ YaXbY→aY|aX is start symbolIf you are using any new variable for conversion then name of each variable symbol should be first two alphabets of your name with roll number and then you can increment value of roll numberExample (Sh10, Sh11, Sh12)1. Draw a parse tree for the string ddadddd using buttom-up and Top-down methods with the Context-Free Grammar below:Q → dQbb | FF → aF | ε 2. What is the problem with a grammar that generates two different parse trees? Give an example. 3. Differentiate between top-down and bottom-up parsing methods using a typical grammar. 4. Write a regular expression to describe inputs over the alphabet {a, b, c} i) that are in sorted order ii) containing at least one a and at least one b 5. Construct the NFA that will accept the string of (dc|ac)* dc (gg|bb)*dc.Consider the following grammar and parsing table: (1) S -> iSeS (2) S ->iS (3) S -> a, Process the string "iiaeaea" using the table and showing the steps for processing each input. Remember that each input string has an implied $ at the end of it
- Build a context-free grammar. Use the usual notation to build the grammar that recognizes the FOR loop in the java and python languages. Please Explain step by step the context-free grammar solution for each language.You are given the following context-free grammar:S → EGF HE → eE | eF → f | EG → gH → hH | hh | eQUESTIONS:1. Convert the grammar into the Chomsky normal form(show all steps of the conversion).2. Use the CYK algorithm to check if the word egehh is inthe language of the grammar.1. Use the algorithm described in our course materials (videos) that takes a CFG and converts it into a CNF grammar that generates the same language as the original grammar, except possibly for the string A, to answer the following question. As part of your answer, you should say which variables are nullable, and you should give the appropriate grammar after each step of the algorithm. There are four steps. Give a CFG (context-free grammar) in CNF (Chomsky Normal Form) that generates the same language, except possibly for the string A, as the following grammar: S АВ → abA|A → bBb|bb A B
- Consider the context-free grammar: and the string aa + a*. a) Give a leftmost derivation for the string. b) Give a rightmost derivation for the string. c) Give a parse tree for the string.G(E):E->E + T | T T->T*F | FF->(E) | digitConstruct a parser for grammar E by YACC-BISON, compute the value,and print the result.Design the attribute grammar: + and * operator can only be used for integers,else errors should be reported. code should be submitted as well. Please add explanation. PLEASE DONT COPY AND PASTE THE OTHER SOLUTION ON CHEGG BECAUSE IT ISNT THE FULL ANSWERPlease help with this modification:2. Use the logic in that program to design your own Recursive Descent parser in C for the following grammar:S →aABA →Abc | bB →d3. Make sure that you choose at least two strings that pass the grammar and one string that does not pass the grammar just like I did in the model program4. Submit both the code and a screen shot of your results for the choice of strings that you provided. Below is the C code that can be used to implement a Recursive Descent parser for the above grammar/* Recursive Descent Parser for the Expression Grammar:S → (L) |aL' →,SL'|εL → SL'Valid inputs: (a,(a,a)) and (a,((a,a),(a,a)))Invalid inputs:(aa,a)*/#include <stdio.h>#include <string.h>int S(), Ldash(), L();char *ip;char string[50];int main() {printf("Enter the string\n");scanf("%s", string);ip = string;printf("\n\nInput\t\tAction\n ------------------------------\n");if…
- A variable name consists of only one letter. The non-terminal S is the start symbol. S = T V ; V = C , V | C T = float C = a-z We want to design an LR parser for this grammar. Create a complete parsing DFA, showing the closure for all states including the parsing marker in every rule, and transitions between the states. You can use the symbol @ as the parsing marker. States need to be numbered or named. You may write all required information in a table instead of drawing a DFA. There is no need to add $ at the end of start rule since there is a terminal at the end, i.e. the semicolon.Q 2 - Give bottom up parser LR(0) and SLR(1) for the following input strings and grammars a. The input string is 000111 and the grammar is S-> 0 S 1 | 0 1 b. The input string is aaa*a++ and the grammar is S -> SS+|SS * | aQ1: Explain the concepts of ambiguity of a grammar. Take an example of your choice and show that the grammar is ambiguous. Draw the parse tree as needed. Q2: Select three flow control statements from C-programming, or from any other programming of your choice, and explain how the relevant grammars are written.