diff --git a/grandma.rb b/grandma.rb
index 5045e39..f11c509 100644
--- a/grandma.rb
+++ b/grandma.rb
@@ -11,3 +11,13 @@
 
 # However if you say 'I LOVE YOU GRANDMA!', she should respond with
 # 'I LOVE YOU TOO PUMPKIN!'
+
+def speak_to_grandma(phrase)
+  if phrase == "I LOVE YOU GRANDMA!"
+    return "I LOVE YOU TOO PUMPKIN!"
+  elsif phrase == phrase.upcase
+    return "NO, NOT SINCE 1938!"
+  else
+    return "HUH?! SPEAK UP, SONNY!"
+  end
+end
\ No newline at end of file