--- a/marking2/docdiff_test4.scala	Tue Oct 29 14:34:51 2019 +0000
+++ b/marking2/docdiff_test4.scala	Tue Oct 29 23:56:13 2019 +0000
@@ -1,10 +1,9 @@
 
+import CW7a._
 
 val urban_list1 = List("a", "b", "b", "c", "d")
 val urban_list2 = List("d", "b", "d", "b", "d")
 
 assert(overlap(urban_list1, urban_list2) == 0.5384615384615384)
-
 assert(overlap(urban_list1, urban_list1) == 1.0)
-
 assert(overlap(urban_list2, urban_list2) == 1.0)