diff --git a/src/main/cup/chocopy/pa1/ChocoPy.cup b/src/main/cup/chocopy/pa1/ChocoPy.cup
index e4004ff..13e324c 100644
--- a/src/main/cup/chocopy/pa1/ChocoPy.cup
+++ b/src/main/cup/chocopy/pa1/ChocoPy.cup
@@ -239,7 +239,7 @@ non terminal Program           program;
 non terminal List<Declaration> program_head, class_body, class_body_defs, fun_body_decs;
 non terminal List<Stmt>        stmt_list, opt_stmt_list, block, else_body;
 non terminal Stmt              stmt, simple_stmt;
-non terminal Expr              expr, binary_expr, pexpr, cexpr, cmp_pexpr;
+non terminal Expr              expr, pexpr, cexpr;
 non terminal VarDef            var_def;
 non terminal ClassDef          class_def;
 non terminal FuncDef           fun_def;
@@ -376,6 +376,7 @@ else_body ::= ELSE:el COLON block:b                                       {: RES
             |                                                             {: RESULT = empty(); :}
             ;
     
+    
 /* simple_stmt */
 simple_stmt ::= PASS:p                                        {: RESULT = null; :}
               | expr:e                                        {: RESULT = new ExprStmt(exleft, exright, e); :}
@@ -417,7 +418,6 @@ cexpr ::= pexpr:pe                                {: RESULT = pe; :}
         ;
 
 
-
 /* pexpr */
 pexpr ::= identifier:id                                   {: RESULT = id; :}
         | literal:l                                       {: RESULT = l; :}
@@ -456,14 +456,17 @@ comp_op ::= EQUAL:a                                         {: RESULT = new Stri
           | IS:a                                            {: RESULT = new StringLiteral(axleft, axright, "is"); :}
           ;
 
+
 /* member_expr */
 member_expr ::= pexpr:p DOT identifier:id                   {: RESULT = new MemberExpr(pxleft, idxright, p, id); :}
               ;
 
+
 /* index_expr */
 index_expr ::= pexpr:p LBR expr:e RBR:rbr                   {: RESULT = new IndexExpr(pxleft, rbrxright, p, e); :}
               ;
     
+    
 /* target */
 target ::= identifier:id                               {: RESULT = id; :}
           | member_expr:m                              {: RESULT = m; :}