pyrrhus = [0, 0]
iamb = [0, 1]
trochee = [1, 0]
spondee = [1, 1]

tricrach = [0, 0, 0]
dactyl = [0, 1, 1]
amphibrach = [0, 1, 0]
anapest = [0, 0, 1]
bacchius = [0, 1, 1]
cretic = [1, 0, 1]
antibacchius = [1, 1, 0]
molossus = [1, 1, 1]
