Mistake finder under 'Emma' did not get parser argument for sementic mistake...

Mistake finder under 'Emma' did not get parser argument for sementic mistake recognition. It now uses the MistakeFinder object initialised in the constructor.

umbra/statistics.py

@@ -57,7 +57,7 @@ class Statistics:
         # Alignment 1 (Thijs) (yet to be implemented)
 
         # Alignment 2
-        print('\n Emma')
+        print('\nEmma')
         self._strategy = AnchorAlgorithm()
         source_align_em, shadow_align_em = self._strategy.align(source_em,
                                                                 shadow_em)
@@ -65,9 +65,7 @@ class Statistics:
             if s_word.has_source():
                 print(f'source: {s_word.source} shadow: {s_word}')
         correctness = self._strategy.correctly_shadowed(source_em)
-        # TODO: Make the mistake finding work with the statement below
-        finder = MistakeFinder()
-        finder.start(source_align_em, shadow_align_em)
+        self._mistake_finder.start(source_align_em, shadow_align_em)
 
         return source_align_em, shadow_align_em, correctness