Improve comments in SelectedEntities (home-assistant#152540)

Author: emontnemery

homeassistant/helpers/target.py

@@ -96,10 +96,10 @@ def has_any_selector(self) -> bool:
 class SelectedEntities:
     """Class to hold the selected entities."""
 
-    # Entities that were explicitly mentioned.
+    # Entity IDs of entities that were explicitly mentioned.
     referenced: set[str] = dataclasses.field(default_factory=set)
 
-    # Entities that were referenced via device/area/floor/label ID.
+    # Entity IDs of entities that were referenced via device/area/floor/label ID.
     # Should not trigger a warning when they don't exist.
     indirectly_referenced: set[str] = dataclasses.field(default_factory=set)