logical.progression:
t22-2
logical.progression:
t22-3
logical.progression:
t22-1
logical.progression:
t22-4
logical.progression:
t22-5
logical.progression:
t22-6
logical.progression:
t22-8
logical.progression:
t22-9
logical.progression:
t22-7
logical.progression:
t22-10
logical.progression:
t22-11
logical.progression:
t22-13
logical.progression:
t22-14
logical.progression:
t22-12
logical.progression:
t22-15
logical.progression:
t22-16
logical.progression:
t22-17