diff --git a/bot.rb b/bot.rb
index 7489637..5f69fb0 100644
--- a/bot.rb
+++ b/bot.rb
@@ -8,6 +8,8 @@ PIN_EMOJI = '📌'
 
 TRIM_MESSAGE_LENGTH = 500
 
+$sentence = {}
+
 bot.reaction_add do |event|
   next unless [BOOKMARK_EMOJI, PIN_EMOJI].include? event.emoji.name
 
@@ -57,4 +59,25 @@ bot.reaction_remove do |event|
   nil
 end
 
+bot.message(in: Integer(ENV['SENTENCE_CHANNEL'])) do |event|
+  if event.message.content == "."
+    if $sentence.empty?
+      next
+    end
+    event << "Congratulations, your sentence is: #{$sentence.values.join(" ").}"
+    $sentence.clear
+    next
+  end
+
+  $sentence[event.message.id] = event.message.content
+end
+
+bot.message_delete(in: Integer(ENV['SENTENCE_CHANNEL'])) do |event|
+  $sentence.delete(event.id)
+end
+
+bot.message_edit(in: Integer(ENV['SENTENCE_CHANNEL'])) do |event|
+  $sentence[event.message.id] = event.message.content
+end
+
 bot.run