diff --git a/smnp/newast/node/access.py b/smnp/newast/node/access.py
index 64080bf..a1bed48 100644
--- a/smnp/newast/node/access.py
+++ b/smnp/newast/node/access.py
@@ -46,6 +46,9 @@ class AccessNode(ExpressionNode):
 
     @staticmethod
     def _parseAccessingProperty():
-        from smnp.newast.node.integer import IntegerLiteralNode
-        # TODO: Just for example. It is supposed to be functionCall (and identifier there)
-        return IntegerLiteralNode._literalParser()
+        from smnp.newast.node.identifier import IdentifierNode
+
+        return Parser.oneOf(
+            IdentifierNode._literalParser(),
+            IdentifierNode._functionCallParser()
+        )
diff --git a/smnp/newast/node/args.py b/smnp/newast/node/args.py
new file mode 100644
index 0000000..edfd870
--- /dev/null
+++ b/smnp/newast/node/args.py
@@ -0,0 +1,11 @@
+from smnp.newast.node.expression import ExpressionNode
+from smnp.newast.node.iterable import abstractIterableParser
+from smnp.newast.node.model import Node
+from smnp.token.type import TokenType
+
+
+class ArgumentsListNode(Node):
+
+    @classmethod
+    def _parse(cls, input):
+        return abstractIterableParser(ArgumentsListNode, TokenType.OPEN_PAREN, TokenType.CLOSE_PAREN, ExpressionNode.parse)(input)
\ No newline at end of file
diff --git a/smnp/newast/node/expression.py b/smnp/newast/node/expression.py
index 1500d8c..68b46f1 100644
--- a/smnp/newast/node/expression.py
+++ b/smnp/newast/node/expression.py
@@ -29,11 +29,13 @@ class ExpressionNode(Node):
         from smnp.newast.node.integer import IntegerLiteralNode
         from smnp.newast.node.string import StringLiteralNode
         from smnp.newast.node.note import NoteLiteralNode
+        from smnp.newast.node.identifier import IdentifierNode
         from smnp.newast.node.list import ListNode
 
         return Parser.oneOf(
             IntegerLiteralNode.parse,
             StringLiteralNode.parse,
             NoteLiteralNode.parse,
+            IdentifierNode.parse,
             ListNode.parse
         )(input)
\ No newline at end of file
diff --git a/smnp/newast/node/identifier.py b/smnp/newast/node/identifier.py
new file mode 100644
index 0000000..17d7a4a
--- /dev/null
+++ b/smnp/newast/node/identifier.py
@@ -0,0 +1,36 @@
+from smnp.newast.node.access import AccessNode
+from smnp.newast.node.args import ArgumentsListNode
+from smnp.newast.node.invocation import FunctionCall
+from smnp.newast.parser import Parser
+from smnp.token.type import TokenType
+
+
+class IdentifierNode(AccessNode):
+    def __init__(self, pos):
+        super().__init__(pos)
+        del self.children[1]
+
+    @classmethod
+    def _literalParser(cls):
+        return Parser.oneOf(
+            IdentifierNode._functionCallParser(),
+            IdentifierNode._identifierParser()
+        )
+
+    @staticmethod
+    def _functionCallParser():
+        def createNode(name, arguments):
+            node = FunctionCall(name.pos)
+            node.name = name
+            node.arguments = arguments
+            return node
+
+        return Parser.allOf(
+            IdentifierNode._identifierParser(),
+            ArgumentsListNode.parse,
+            createNode=createNode
+        )
+
+    @staticmethod
+    def _identifierParser():
+        return Parser.terminalParser(TokenType.IDENTIFIER, lambda val, pos: IdentifierNode.withValue(val, pos))
diff --git a/smnp/newast/node/invocation.py b/smnp/newast/node/invocation.py
new file mode 100644
index 0000000..0db3099
--- /dev/null
+++ b/smnp/newast/node/invocation.py
@@ -0,0 +1,27 @@
+from smnp.newast.node.access import AccessNode
+
+
+class FunctionCall(AccessNode):
+    def __init__(self, pos):
+        super().__init__(pos)
+
+    @property
+    def name(self):
+        return self[0]
+
+    @name.setter
+    def name(self, value):
+        self[0] = value
+
+    @property
+    def arguments(self):
+        return self[1]
+
+    @arguments.setter
+    def arguments(self, value):
+        self[1] = value
+
+    @classmethod
+    def _parse(cls, input):
+        raise RuntimeError("This class is not supposed to be automatically called")
+