diff --git a/pycmx/parse_cmx_statements.py b/pycmx/parse_cmx_statements.py
index ae06d07..ff09542 100644
--- a/pycmx/parse_cmx_statements.py
+++ b/pycmx/parse_cmx_statements.py
@@ -146,7 +146,7 @@ def _parse_remark(line, line_number) -> object:
                                   line_number=line_number)
 
             except ValueError as e:
-                return StmtCorruptRemark('ASC_SAT', e, line_number) 
+                return StmtCorruptRemark('ASC_SAT', e, line_number)
 
     elif line.startswith("FRMC"):
         match = re.match(r'^FRMC START:\s*(\d+)\s+FRMC END:\s*(\d+)'
diff --git a/pycmx/statements.py b/pycmx/statements.py
index 071459f..475c53b 100644
--- a/pycmx/statements.py
+++ b/pycmx/statements.py
@@ -5,7 +5,7 @@ from typing import Any, NamedTuple
 
 from pycmx.cdl import AscSopComponents
 
-type TimecodeStr = str
+# type str = str
 
 
 class StmtTitle(NamedTuple):
@@ -24,10 +24,10 @@ class StmtEvent(NamedTuple):
     channels: str
     trans: str
     trans_op: str
-    source_in: TimecodeStr
-    source_out: TimecodeStr
-    record_in: TimecodeStr
-    record_out: TimecodeStr
+    source_in: str
+    source_out: str
+    record_in: str
+    record_out: str
     source_field_size: int
     line_number: int
 
@@ -84,7 +84,7 @@ class StmtSourceUMID(NamedTuple):
 
 class StmtSplitEdit(NamedTuple):
     video: bool
-    delay: TimecodeStr
+    delay: str
     line_number: int