Joe asked:
‘Mother, what colour are chicks?’
‘Chicks are yellow.’
Joe was silent, but only for a little while.
‘What colour is that thing inside a boiled egg?’
‘That thing is a yolk, and it is yellow.’
‘Mum, what is that, that you are drinking?’
‘It’s lemonade.’
‘What is lemonade made of, mum?’
