diff --git a/README.md b/README.md
index 5530621..60f4d34 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ The default behavior is to write a file called `rev-{GIT_REVISION_HASH}-args{HAS
 The script also has an option to print some examples instead of writing to a file, for debugging/dev purposes. Example usage:
 
 ```bash
-$ ./waifu/scripts/build_dataset.py --print 1 --modules 'light_dialogue_vdm:LightDialogueVDM' # or -p 1 and -m ...
+$ ./waifu/scripts/build_dataset.py --print 1 --modules 'light_dialogue_pdm:LightDialoguePDM' # or -p 1 and -m ...
 ```
 
 Example output:
diff --git a/waifu/modules/light_dialogue_vdm.py b/waifu/modules/light_dialogue_pdm.py
similarity index 68%
rename from waifu/modules/light_dialogue_vdm.py
rename to waifu/modules/light_dialogue_pdm.py
index 7e9588f..f1d5255 100644
--- a/waifu/modules/light_dialogue_vdm.py
+++ b/waifu/modules/light_dialogue_pdm.py
@@ -1,22 +1,22 @@
 import typing as t
 
+from waifu.core.consts import PromptConstants
 from waifu.datasets.light_dialogue import LightDialogueDataset
 from waifu.modules import BaseModule
 from waifu.utils.strings import normalize_string, title_case
 
 
-class LightDialogueVDM(BaseModule):
-    '''Vanilla Dialogue Module based on the LIGHT dialogue dataset.'''
+class LightDialoguePDM(BaseModule):
+    '''Persona Dialogue Module based on the LIGHT dataset.'''
 
     def generator(self) -> t.Generator[str, None, None]:
         for episode in LightDialogueDataset():
-            # TODO(11b): Context and persona don't belong in a vanilla dialogue
-            # module.
+            # TODO(11b): Scenario doesn't belong in a persona dialog module.
             context_message = f"Context: {episode.context[0]}\n"
 
             persona_message = ""
             for agent in episode.agents:
-                persona_message += f"{title_case(agent.name)}'s Description: {agent.persona}\n"
+                persona_message += f"{PromptConstants.pdm_prefix_for(title_case(agent.name))}: {agent.persona}\n"
 
             episode_messages: t.List[str] = [context_message, persona_message]
             turn_count = len(episode.speech)
@@ -30,9 +30,13 @@ class LightDialogueVDM(BaseModule):
 
                 # If there was an action performed in that turn, add it to the
                 # string.
-                action = episode.action[idx]
-                if action is not None:
-                    message += f" *{action}*"
+                #
+                # NOTE(11b): Disabled for now. Adding the action like this
+                # generates grammatically incorrect sentences.
+
+                # action = episode.action[idx]
+                # if action is not None:
+                #     message += f" *{action}*"
 
                 # If there was an emote in that turn, add it to the string.
                 emote = episode.emote[idx]
diff --git a/waifu/scripts/build_dataset.py b/waifu/scripts/build_dataset.py
index c146587..ca5e509 100755
--- a/waifu/scripts/build_dataset.py
+++ b/waifu/scripts/build_dataset.py
@@ -11,13 +11,13 @@ import typing as t
 
 from waifu.modules import BaseModule
 
-# TODO(11b): Needs manual maintenance ot keep up-to-date. Consider doing some
+# TODO(11b): Needs manual maintenance to keep up-to-date. Consider doing some
 # metaprogramming trickery to build this list out instead.
 DEFAULT_MODULE_LIST = [
     "characterai_pdm:CharacterAiPDM",
     "kajiwoto_pdm:KajiwotoPDM",
     # "kajiwoto_vdm:KajiwotoVDM",
-    "light_dialogue_vdm:LightDialogueVDM",
+    "light_dialogue_pdm:LightDialoguePDM",
 ]
 DEFAULT_MODULES_STRING = ",".join(DEFAULT_MODULE_LIST)