diff --git a/README.md b/README.md
index 595af93..c0e81f5 100755
--- a/README.md
+++ b/README.md
@@ -104,6 +104,8 @@ official protocols used as input data are included.
     - N-grams will then be count by year, speaker and so on.
     - The second argument is a user specified string to identify from what kind of protocols the n-grams have been calculated.
     - The string "lm_ns_year" for example describes that the input protocols have been lemmatized ("lm") and contain no stop words ("ns"). The last part ("year") specifies that the n-grams have been calculated by year.
+    - The string "tk_ws_speaker" means that the ngrams are calculated using tokenized("tk") protocols with stop words ("ws").
+    - N-grams are counted per speaker ("speaker").
 
 # Used packages and software
 - js-beautify: https://github.com/beautify-web/js-beautify