TEST 1
Trial 1
<== f-1     (a)
...
<== f-2     (b)
<== f-3     (c)
<== f-4     (d)
<== f-5     (e)
Trial 2
<== f-3     (c)
<== f-4     (d)
<== f-5     (e)
...
...
<== f-1     (a)
...
<== f-2     (b)
Trial 3
<== f-4     (d)
<== f-5     (e)
...
<== f-2     (b)
<== f-3     (c)
...
<== f-1     (a)
...
<== f-6     (f)
Trial 4
<== f-5     (e)
...
<== f-4     (d)
...
<== f-3     (c)
...
<== f-2     (b)
Trial 5
<== f-6     (f)
...
<== f-5     (e)
...
<== f-2     (b)
<== f-3     (c)
<== f-4     (d)
TEST 2
Trial 1
<== f-1     (g)
...
<== f-2     (h)
...
<== f-3     (i)
...
<== f-4     (j)
...
<== f-5     (k)
<== f-6     (x)
Trial 2
<== f-5     (k)
...
<== f-4     (j)
...
<== f-3     (i)
...
<== f-2     (h)
...
<== f-1     (g)
Trial 3
<== f-3     (i)
...
<== f-4     (j)
...
<== f-5     (k)
...
<== f-1     (g)
...
<== f-2     (h)