lesson-4.md

@@ -280,7 +280,7 @@ A strange thing to note is that when we tested the sensor above a black square,
 
 We are not quite sure why the program returns 'Green' instead of 'Black'. If we look at the values from the black test (second row), we can see that most of the values are lower than the other color tests. Especially the values for 'Light' are very low compared to the others. Therefore it should be possible to distinguish between black and other colors.
 
-Based on the wrong return value we got from the black reading, it would not be possible to use the color sensor for following the black line and stopping in the goal zone, if it depends upon the *ColorSensorSensor.java* program. But as argued above, the values from the sensor are 
+Based on the wrong return value we got from the black reading, it would not be possible to use the color sensor for following the black line and stopping in the goal zone, if it depends upon the *ColorSensorSensor.java* program. But as argued above, the values from the sensor when detecting black, seems to be distinguishable from the other color detections, so with a different program the color sensor might work for the line follower job.