diff -r 4b347b6e134f -r bc3980949af2 cws/pre_cw02.tex
--- a/cws/pre_cw02.tex	Sun Nov 08 03:08:31 2020 +0000
+++ b/cws/pre_cw02.tex	Sun Nov 08 13:09:38 2020 +0000
@@ -16,7 +16,8 @@
 \mbox{}\hfill\textit{ --- Frederick P.~Brooks (author of The Mythical Man-Month)}\bigskip\medskip
 
 \IMPORTANT{You are asked to implement a Scala program for measuring similarity in
-  texts. The preliminary part is due on \cwSEVEN{} at 5pm and worth 3\%.}
+  texts. The preliminary part is due on \cwSEVEN{} at 5pm and worth 3\%.
+  Any 1\% you achieve in the preliminary part counts as your ``weekly engagement''.}
 
 \noindent
 Also note that the running time of each part will be restricted to a