TEST 1
f2p: det, not unique
f2p: det, not unique
f2p: det, not unique
f2p: det, not unique
f2p: det, not unique
[5, 4, 3, 2, 1]

TEST 2
f2p: det, unique
a
f2p: det, unique
b
f2p: det, unique
c

TEST 3
f2p: semidet
f2p: semidet
f2p: semidet
found a multiple of three