diff --git a/v1.3.1/README.org b/v1.3.1/README.org
index d24f1f5..c1e19fa 100644
--- a/v1.3.1/README.org
+++ b/v1.3.1/README.org
@@ -195,9 +195,9 @@ minute.
 ** Scenario 4
 
 Test with a human operator carrying the mobile terminal. The operator
-moves along a path following the measurement points 1 to 5, and stand at
-each point for 10 seconds. The pace of the operator is 1 m/s (one second
-per step, with one-metre steps).
+moves along a path following the measurement points 1 to 5, and stands
+at each point for 10 seconds. The pace of the operator is 1 m/s (one
+second per step, with one-metre steps).
 
 Timing:
 - t-10 :: stand at MP#1 in the direction of MP#2, start the aggregation
@@ -318,9 +318,16 @@ The following frequencies are tested:
 This scenario aims to evaluate the impact of horizontal capture points'
 antennas. The scenario 1 is repeated partially (for the measurement
 points 3, 4 and 5 only) two times:
-
 1. Each capture point antenna is disposed horizontally, pointing in the
    direction of the opposite wall.
+2. The antennas are still horizontal, but placed so that each antenna
+   points in the direction of another capture point, in a circle: the
+   North-West and South-East listeners' antennas stay in the same
+   position as the previous test, but the North-East listener's antenna
+   points to the West, and the South-West listener's antenna points to
+   the East.
+
+#+CAPTION: Scenario 12, test 1.
 #+begin_src ditaa :cmdline -s 2 :file s12-1.png
  +---+        +---+
  |   |        |   |
@@ -340,8 +347,7 @@ points 3, 4 and 5 only) two times:
  +---+        +---+
 #+end_src
 
-2. The antennas are still horizontal, but placed so that each antenna
-   points in the direction of another capture point in a circle.
+#+CAPTION: Scenario 12, test 2.
 #+begin_src ditaa :cmdline -s 2 :file s12-2.png
  +---+        +---+
  |   |        |   |