diff --git a/README.md b/README.md
index 40f6bdf..ebfdf05 100644
--- a/README.md
+++ b/README.md
@@ -69,8 +69,12 @@
    "N" : 55650540526,           // number of tokens in corpus
    "collocates" : [             // array of collocates
       {
-         "afwin" : 64,          // auto-focus window (see Perkuhn et al. 2012: E8-15) bit field 64 = 2^6 ≙ 00010 node 00000 (Aus [gutem] Grund)
-         "delta" : 0,           // rank delta compared to collocation in background corpus (currently unused)
+         "afwin" : 64,          // binary encoded auto-focus window
+                                // (see Perkuhn et al. 2012: E8-15):
+                                // 64 = 2^6 ≙ 00010 node 00000
+                                // (Aus [gutem] Grund)
+         "delta" : 0,           // rank delta compared to collocation in a background
+                                // corpus (currently unused)
          "dice" : 0.00198886,   // dice score
          "f" : 113490,          // abs. frequency of collocation
          "f2" : 10965575,       // abs. frequency of collocate
@@ -87,7 +91,8 @@
          "pmi" : 2.4811,        // pointwise mutual information
          "rn_count" : 386,      // frequency of collocate as right neighbour of node
          "rn_pmi" : -2.39672,   // pmi as right neighbour
-         "win" : 1023,          // full window around node as bit field 1023 = 2^10-1 ≙ 11111 node 11111
+         "win" : 1023,          // binary encoded positions at which the collocate
+                                // appears at least once 1023 = 2^10-1 ≙ 11111 node 11111
                                 // (unmarked scores refer to this)
          "word" : "Aus"         // collocate
       },