4. If we define the following tokens: /* definitions of manifest constants LT, LE, EQ, NE, GT, GE, IF, THEN, ELSE, ID, NUMBER, RELOP. /* regular definitions*/ delim [ltin] ws (delim+ letter [A-Za-] digit [0-9] id (letterKfletter)I (digit) number (digit)+((digit)+)PIEl+]P(digit +)? 96% (ws) V no action and no return/ if (return (IF): ) then (return (THEN): ) else [return (ELSE)) (id) (yylval = (int) installID(); return (ID); } (number) (vylval (int) installNum(); return (NUMBER): '" (wtval = LT; return (RELO); } ""(yylval-GT; return (RELOP); } (yylval = GE; return (RELOP); } Divide the following code into appropriate lexemes. Which lexemes should get associated lexical values? What should those values be? if al