A) if Brain has a lot of money, he'll buy a bike.
if he buys a bike, he'll ride it
if he rides it he'll fall
if he falls he'll end up in hospital
if he doesn't have proper healing in hospital he'll die
B) if you don't do well at school, you'll become a bad pupil.
if you become a bad pupil, you'll stay stupid
if you stay stupid you'll never have a certificate
if you don't have a certificate you will not have a job
if you don't heva a job you will die over starving