--- a/templates2/danube.scala	Wed Feb 05 12:24:27 2020 +0000
+++ b/templates2/danube.scala	Fri Apr 10 12:12:48 2020 +0100
@@ -25,7 +25,7 @@
 
 // testcases
 //-----------
-//val ratings = get_csv_url(ratings_url)
+//:
 //val movies = get_csv_url(movies_url)
 
 //ratings.length  // 87313
@@ -36,7 +36,8 @@
 // (2) Implement two functions that process the CSV-files from (1). The ratings
 //     function filters out all ratings below 4 and ReTurns a list of 
 //     (userID, movieID) pairs. The movies function just ReTurns a list 
-//     of (movieID, title) pairs.
+//     of (movieID, title) pairs. Note the input to these functions, that is
+//     the argument lines, will be the output of the function get_csv_url.
 
 
 //def process_ratings(lines: List[String]) : List[(String, String)] = ...