diff --git a/sandbox.ld b/sandbox.ld
new file mode 100644
index 0000000..be2a3d6
--- /dev/null
+++ b/sandbox.ld
@@ -0,0 +1,114 @@
+let input = "I remember my mother"
+
+print! ("DOCTOR")
+
+print! ("> ", input)
+
+let sanitized = do input > trim > downcase
+
+& ensuring we have spaces at the beginning and end
+& this lets us match patterns as written below
+let padded = join ([" ", sanitized, " "])
+
+fn switch_persons {
+ ("i") -> "you"
+ ("you") -> "i"
+ ("am") -> "are"
+ ("me") -> "you"
+ ("my") -> "your"
+ (x) -> x
+}
+
+fn repersonalize (x) -> do x > 
+    trim > 
+    split (_, " ") > 
+    map (switch_persons, _) > 
+    join (_, " ")
+
+let output = match padded with {
+ "{x} hello {y}" -> "How do you do. Please state your problem"
+ "{x} hi {y}" -> "How do you do. Please state your problem"
+ "{x} computer {y}" -> random ([
+   "Do computers worry you"
+   "What do you think about machines"
+   "Why do you mention computers"
+   "What do you think machines have to do with your problem"
+ ])
+ "{x} name {y}" -> "I am not interested in names"
+ "{x} sorry {y}" -> random ([
+   "Please don't apologize"
+   "Apologies are not necessary"
+   "What feelings do you have when you apologize"
+ ])
+ "{x} i remember {y}" -> { 
+   let switched = repersonalize (y)
+   random ([
+     "Do you often think of {switched}"
+     "Does thinking of {switched} bring anything else to mind"
+     "What else do you remember"
+     "Why do you recall {switched} right now"
+     "What in the present situation reminds you of {switched}"
+     "What is the connection between me and {switched}"
+   ])
+  } 
+ "{x} do you remember {y}" -> {
+  let switched = repersonalize (y)
+  random ([
+    "Did you think I would forget {switched}"
+    "Why do you think I should recall {switched} now"
+    "What about {switched}"
+    "You mentioned {switched}"
+  ])
+ }
+ "{x} if {y}" -> {
+  let switched = repersonalize (y)
+  random ([
+    "Do you reall think that its likely that {switched}"
+    "Do you wish that {switched}"
+    "What do you think about {switched}"
+    "Really--if {switched}"
+  ])
+ }
+ "{x} i dreamt {y}" -> {
+  let switched = repersonlize (y)
+  random ([
+   "Really--{y}"
+   "Have you ever fantasized {y} while you were awake"
+   "Have you dreamt {y} before"
+  ])
+ }
+ "{x} dream about {y}" -> {
+  let switched = repersonalize (y)
+  "How do you feel about {switched} in reality"
+ }
+ "{x} dream {y}" -> random ([
+   "What does this dream suggest to you"
+   "Do you dream often"
+   "What persons appear in your dreams"
+   "Don't you believe that dream has to do with your problem"
+ ])
+ "{x} my mother {y}" -> {
+  let switched = repersonalize (y)
+  random ([
+   "Who else in your family {y}"
+   "Tell me more about your family"
+  ])
+ }
+ "{x} my father {y}" -> random ([
+   "Your father"
+   "Does he influence you strongly"
+   "What else comes to mind when you think of your father"
+ ])
+ _ -> random ([
+   "Very interesting"
+   "I am not sure I understand you fully"
+   "What does that suggest to you"
+   "Please continue"
+   "Go on"
+   "Do you feel strongly about discussing such things"
+ ]) 
+}
+
+print! (">>> ", upcase (output))
+
+