I need help with my context free language. It needs to do the following 1. Developing a language model based on the context-free grammar: Use the context-free grammar to develop a language model that can be used to generate coherent and grammatically correct sentences in American English. 2. Incorporating semantic information into the context-free grammar: Expand the context- free grammar to incorporate semantic information, such as word meaning and context, to generate more meaningful sentences in American English. here is my Java code  import java.util.*; import java.util.stream.Collectors; public class CFG {     private static Map> rules;     public static void main(String[] args) {         rules = new HashMap<>();         initializeGrammarRules();         String sentence = generateSentence("S");         System.out.println(sentence);     }     private static void initializeGrammarRules() {         rules.put("S", Arrays.asList("NP VP"));         rules.put("NP", Arrays.asList("Det N", "Det AP N"));         rules.put("AP", Arrays.asList("Adj", "Adj AP"));         rules.put("VP", Arrays.asList("V NP", "V NP PP"));         rules.put("PP", Arrays.asList("P NP"));         rules.put("Det", Arrays.asList("the", "a", "an"));         rules.put("N", Arrays.asList("cat", "dog", "book", "tree"));         rules.put("Adj", Arrays.asList("big", "small", "brown", "green"));         rules.put("V", Arrays.asList("chased", "ate", "read", "climbed"));         rules.put("P", Arrays.asList("in", "on", "under", "above"));     }     private static String generateSentence(String symbol) {         List alternatives = rules.get(symbol);         if (alternatives == null) {             return symbol;         }         String expansion = alternatives.get(new Random().nextInt(alternatives.size()));         String[] symbols = expansion.split("\\s+");         return Arrays.stream(symbols)                 .map(CFG::generateSentence)                 .collect(Collectors.joining(" "));     } }   Please post the results

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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I need help with my context free language. It needs to do the following 1. Developing a language model based on the context-free grammar: Use the context-free grammar to develop a language model that can be used to generate coherent and grammatically correct sentences in American English.
2. Incorporating semantic information into the context-free grammar: Expand the context- free grammar to incorporate semantic information, such as word meaning and context, to generate more meaningful sentences in American English.

here is my Java code 

import java.util.*;
import java.util.stream.Collectors;

public class CFG {
    private static Map<String, List<String>> rules;

    public static void main(String[] args) {
        rules = new HashMap<>();
        initializeGrammarRules();

        String sentence = generateSentence("S");
        System.out.println(sentence);
    }

    private static void initializeGrammarRules() {
        rules.put("S", Arrays.asList("NP VP"));
        rules.put("NP", Arrays.asList("Det N", "Det AP N"));
        rules.put("AP", Arrays.asList("Adj", "Adj AP"));
        rules.put("VP", Arrays.asList("V NP", "V NP PP"));
        rules.put("PP", Arrays.asList("P NP"));
        rules.put("Det", Arrays.asList("the", "a", "an"));
        rules.put("N", Arrays.asList("cat", "dog", "book", "tree"));
        rules.put("Adj", Arrays.asList("big", "small", "brown", "green"));
        rules.put("V", Arrays.asList("chased", "ate", "read", "climbed"));
        rules.put("P", Arrays.asList("in", "on", "under", "above"));
    }

    private static String generateSentence(String symbol) {
        List<String> alternatives = rules.get(symbol);

        if (alternatives == null) {
            return symbol;
        }

        String expansion = alternatives.get(new Random().nextInt(alternatives.size()));
        String[] symbols = expansion.split("\\s+");

        return Arrays.stream(symbols)
                .map(CFG::generateSentence)
                .collect(Collectors.joining(" "));
    }
}

 

Please post the results 

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