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diff --git a/old-examples/tutorial/semantics/Top.hs b/old-examples/tutorial/semantics/Top.hs
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+module Main where
+
+import GSyntax
+import SemBase
+import Logic
+import GF.GFCC.API
+
+main :: IO ()
+main = do
+ gr <- file2grammar "base.gfcc"
+ loop gr
+
+loop :: MultiGrammar -> IO ()
+loop gr = do
+ s <- getLine
+ let t:_ = parse gr "BaseEng" "S" s
+ putStrLn $ showTree t
+ let p = iS $ fg t
+ putStrLn $ show p
+ let v = valProp exModel [] p
+ putStrLn $ show v
+ loop gr
+