removed false commas in Grammar toString()

ChatGPTParsing/src/grammar/Grammar.java

@@ -53,7 +53,7 @@ public abstract class Grammar {
 	@Override
 	public String toString() {
 		StringBuilder sb = new StringBuilder();
-		sb.append("G = (V, T, R, " + this.getStart() + "),\\n");
+		sb.append("G = (V, T, R, " + this.getStart() + ")\\n");
 		sb.append("V = {");
 		for (int i = 0; i < this.getVars().length; i++) {
 			sb.append(this.getVars()[i]);
@@ -61,7 +61,7 @@ public abstract class Grammar {
 				sb.append(", ");
 			}
 		}
-		sb.append("},\\n");
+		sb.append("}\\n");
 		sb.append("T = {");
 		for (int i = 97; i < 97 + this.getAlphaSize(); i++) {
 			sb.append((char) i);
@@ -69,7 +69,7 @@ public abstract class Grammar {
 				sb.append(", ");
 			}
 		}
-		sb.append("},\\n");
+		sb.append("}\\n");
 		sb.append("R = {");
 		Iterator<Entry<String, List<List<String>>>> it = this.getRules().entrySet().iterator();
 		while (it.hasNext()) {