print lines correctly

utils.py

@@ -242,4 +242,5 @@ def print_results_to_file(corpus, test_sentences, test_results,
     
     with open('test_results_ST3/' + corpus + '.tsv', 'a+', encoding='utf-8') as f:
         for line in results_to_write:
-            f.write('\t'.join([str(x) for x in line]))
\ No newline at end of file
+            f.write('\t'.join([str(x) for x in line]))
+            f.write('\n')
\ No newline at end of file