diff --git a/py_rql/grammar.py b/py_rql/grammar.py
index 57c790e..a7757dc 100644
--- a/py_rql/grammar.py
+++ b/py_rql/grammar.py
@@ -13,26 +13,28 @@
 
 RQL_GRAMMAR = r"""
 start: _top_term?
-    
+
 _top_term: term
     | term_and_comma
 
 term: expr_term
     | logical
     | tuple
-    
+    | _L_BRACE logical _R_BRACE
+    | _L_BRACE tuple _R_BRACE
+
 expr_term: comp
     | listing
     | searching
     | ordering
     | select
     | _L_BRACE expr_term _R_BRACE
-    
+
 logical: and_op
     | or_op
     | not_op
-    
-and_op: _and 
+
+and_op: _and
     | _L_BRACE _and _R_BRACE
 
 _and: _AND? _logical_exp
@@ -57,7 +59,7 @@
 comp: comp_term _L_BRACE prop _COMMA val _R_BRACE
     | prop _EQUALITY comp_term _EQUALITY val
     | prop _EQUALITY val
-    
+
 listing: list_term _L_BRACE prop _COMMA _L_BRACE val (_COMMA val)* _R_BRACE _R_BRACE
 searching: search_term _L_BRACE prop _COMMA val _R_BRACE
 
@@ -65,7 +67,7 @@
 select: select_term _signed_props
 _signed_props: _L_BRACE _R_BRACE
     | _L_BRACE sign_prop (_COMMA sign_prop)* _R_BRACE
-    
+
 val: prop
     | tuple
     | QUOTED_VAL
@@ -78,11 +80,11 @@
     | ordering_term
     | select_term
     | PROP
-    
+
 tuple: _TUPLE _L_BRACE (comp|searching) (_COMMA (comp|searching))* _R_BRACE
 
 !sign_prop: ["+"|"-"] prop
-    
+
 !comp_term: "eq" | "ne" | "gt" | "ge" | "lt" | "le"
 !logical_term: _AND | _OR | _NOT
 !list_term: "in" | "out"
@@ -90,7 +92,7 @@
 !ordering_term: "ordering"
 !select_term: "select"
 
-    
+
 PROP: /[a-zA-Z]/ /[\w\-\.]/*
 QUOTED_VAL: /"[^"]*"/
     | /'[^']*'/
diff --git a/tests/test_parser/test_logical.py b/tests/test_parser/test_logical.py
index 89ef646..580bdec 100644
--- a/tests/test_parser/test_logical.py
+++ b/tests/test_parser/test_logical.py
@@ -7,7 +7,11 @@
 import pytest
 from lark.exceptions import LarkError
 
-from py_rql.constants import ComparisonOperators, LogicalOperators
+from py_rql.constants import (
+    ComparisonOperators,
+    LogicalOperators,
+    SearchOperators,
+)
 from py_rql.parser import RQLParser
 from tests.test_parser.utils import LogicalTransformer
 
@@ -199,3 +203,48 @@ def test_or_chain(query):
             (ComparisonOperators.EQ, 'p4', 'v4'),
         ],
     }
+
+
+def test_logical_tuple_and_not():
+    result = logical_transform('(not(id=fg))')
+
+    not_grammar_key = LogicalOperators.get_grammar_key(LogicalOperators.NOT)
+
+    assert result == {
+        not_grammar_key: [(ComparisonOperators.EQ, 'id', 'fg')],
+    }
+
+
+def test_logical_tuple_and_not_w_and_nesting():
+    result = logical_transform('((not(eq(id,fg)))&(not(ge(external_id,fg))))')
+
+    and_grammar_key = LogicalOperators.get_grammar_key(LogicalOperators.AND)
+    not_grammar_key = LogicalOperators.get_grammar_key(LogicalOperators.NOT)
+
+    assert result == {
+        and_grammar_key: [
+            {not_grammar_key: [(ComparisonOperators.EQ, 'id', 'fg')]},
+            {not_grammar_key: [(ComparisonOperators.GE, 'external_id', 'fg')]}
+        ]
+    }
+
+
+def test_logical_tuple_nesting_ands_and_ors():
+    result = logical_transform(
+        '((((eq(id,*baba*))&(eq(external_id,*baba*))))|(((eq(id,*dziad*)))))',
+    )
+
+    and_grammar_key = LogicalOperators.get_grammar_key(LogicalOperators.AND)
+    or_grammar_key = LogicalOperators.get_grammar_key(LogicalOperators.OR)
+
+    assert result == {
+        or_grammar_key: [
+            {
+                and_grammar_key: [
+                    (ComparisonOperators.EQ, 'id', '*baba*'),
+                    (ComparisonOperators.EQ, 'external_id', '*baba*')
+                ]
+            },
+            (ComparisonOperators.EQ, 'id', '*dziad*')
+        ]
+    }