diff --git a/src/GEval/Common.hs b/src/GEval/Common.hs
index c8b581d..9dd06d7 100644
--- a/src/GEval/Common.hs
+++ b/src/GEval/Common.hs
@@ -19,6 +19,7 @@ data FormattingOptions = FormattingOptions {
   decimalPlaces :: Maybe Int,
   asPercentage :: Bool
   }
+  deriving (Show)
 
 data MetricResult = SimpleRun MetricValue | BootstrapResampling [MetricValue]
 
diff --git a/src/GEval/Core.hs b/src/GEval/Core.hs
index 0fb4b16..74ec429 100644
--- a/src/GEval/Core.hs
+++ b/src/GEval/Core.hs
@@ -56,8 +56,6 @@ module GEval.Core
       fromSpecificationToWithInput
     ) where
 
-import Debug.Trace
-
 import Data.Singletons.TH
 
 import GEval.Metric
@@ -152,13 +150,39 @@ hasFiltering (_:ops) = hasFiltering ops
 
 -- | Could output be preprocessable
 isPreprocessable :: Metric -> Bool
-isPreprocessable BLEU = True
-isPreprocessable GLEU = True
-isPreprocessable WER = True
+isPreprocessable RMSE     = False
+isPreprocessable MSE      = False
+isPreprocessable Pearson  = False
+isPreprocessable Spearman = False
+isPreprocessable BLEU     = True
+isPreprocessable GLEU     = True
+isPreprocessable WER      = True
 isPreprocessable Accuracy = True
+isPreprocessable ClippEU  = False
+isPreprocessable (FMeasure _) = False
+isPreprocessable (MacroFMeasure _) = False
+isPreprocessable (SoftFMeasure _) = False
+isPreprocessable (ProbabilisticMultiLabelFMeasure _) = True
+isPreprocessable (ProbabilisticSoftFMeasure _) = True
+isPreprocessable (Soft2DFMeasure _) = False
+isPreprocessable (FLCFMeasure _) = False
+isPreprocessable NMI = False
+isPreprocessable (LogLossHashed _) = False
+isPreprocessable (LikelihoodHashed _) = False
 isPreprocessable CharMatch = True
+isPreprocessable MAP = False
+isPreprocessable LogLoss = False
+isPreprocessable Likelihood = False
+isPreprocessable BIOF1 = False
+isPreprocessable BIOF1Labels = False
 isPreprocessable TokenAccuracy = True
-isPreprocessable _ = False
+isPreprocessable SegmentAccuracy = True
+isPreprocessable MAE = False
+isPreprocessable SMAPE = False
+isPreprocessable (MultiLabelFMeasure _ _) = True
+isPreprocessable MultiLabelLogLoss = False
+isPreprocessable MultiLabelLikelihood = False
+isPreprocessable (Mean metric) = isPreprocessable metric
 
 defaultOutDirectory = "."
 defaultTestName = "test-A"
@@ -192,7 +216,7 @@ data GEvalSpecification = GEvalSpecification
                             gesBootstrapResampling :: Maybe Int,
                             gesInHeader :: Maybe String,
                             gesOutHeader :: Maybe String }
-
+                          deriving (Show)
 
 gesMainMetric :: GEvalSpecification -> Metric
 gesMainMetric spec = case gesMetrics spec of
@@ -560,6 +584,7 @@ isEmptyFileSource _ = return False
 logLossToLikehood logLoss = exp (-logLoss)
 
 data LineInFile = LineInFile SourceSpec Word32 Text
+                  deriving Show
 
 gevalBootstrapOnSources :: (MonadIO m, MonadThrow m, MonadUnliftIO m) =>
                           Int                         -- ^ number of samples
diff --git a/test/Spec.hs b/test/Spec.hs
index 8a727c0..5d547a3 100644
--- a/test/Spec.hs
+++ b/test/Spec.hs
@@ -364,8 +364,7 @@ main = hspec $ do
       runGEvalTest "f1-with-preprocessing" `shouldReturnAlmost` 0.57142857142857
     it "Regexp substition" $ do
       runGEvalTest "accuracy-with-flags" `shouldReturnAlmost` 0.8
-    it "In line-by-line mode" $ do
-      let sampleChallenge = GEvalSpecification
+    let sampleChallenge = GEvalSpecification
             { gesOutDirectory = "test/accuracy-flags-line-by-line/accuracy-flags-line-by-line-solution",
               gesExpectedDirectory = Just "test/accuracy-flags-line-by-line/accuracy-flags-line-by-line",
               gesTestName = "test-A",
@@ -384,6 +383,7 @@ main = hspec $ do
               gesBootstrapResampling = Nothing,
               gesInHeader = Nothing,
               gesOutHeader = Nothing }
+    it "In line-by-line mode Accuracy" $ do
       results <- runLineByLineGeneralized KeepTheOriginalOrder sampleChallenge (const Data.Conduit.List.consume)
       results `shouldBe` [
         LineRecord "foo"
@@ -396,6 +396,19 @@ main = hspec $ do
                    "Fox bax 456 bax"
                    2
                    0.0]
+    it "In line-by-line mode F0" $ do
+      results <- runLineByLineGeneralized KeepTheOriginalOrder sampleChallenge { gesMetrics = [read "MultiLabel-F0:f<in[1]:foo>s<\\d+><>"]} (const Data.Conduit.List.consume)
+      results `shouldBe` [
+        LineRecord "foo"
+                   "Ala 123 ma kota."
+                   "Ala ma 2 kota ."
+                   1
+                   1.0,
+        LineRecord "foo"
+                   "Foo bar baz"
+                   "Fox bax 456 bax"
+                   2
+                   0.0]
   describe "Flag examples" $ do
     it "none" $ do
       runGEvalTest "flags-none" `shouldReturnAlmost` 0.2
diff --git a/test/multilabel-f1-simple/multilabel-f1-simple/test-A/expected.tsv b/test/multilabel-f1-simple/multilabel-f1-simple/test-A/expected.tsv
index 64612c3..1dc07f2 100644
--- a/test/multilabel-f1-simple/multilabel-f1-simple/test-A/expected.tsv
+++ b/test/multilabel-f1-simple/multilabel-f1-simple/test-A/expected.tsv
@@ -1,4 +1,4 @@
-foo bar baz
+   foo bar    baz
 
 foo
-qqq qqq
+ qqq   qqq