Two little bots go to an empty planet one day
Three bots come back, so the physicist says
‘Our assumptions were wrong’
Biologist said ‘they bred’ in vain
Mathematician said ‘If one goes back’
Then the planet would be empty again
Why is it said that maths is the odd one out
In class it’s got a reputation for being awkward
Because, like the bass guitarists of a grand band
It rolls and rocks backward and forward