He built his windmill from bits of his dad's old bicycle.

The villagers use the electricity to charge their mobiles.

With the rain came cholera and some of the villagers died of the disease.

William has co-authored a book with another writer.

When William said he would make a windmill, people thought he was crazy.

There wasn't any rain, so their crops didn't grow and they couldn't make bread.

William didn't go to school, so he tried to educate himself.

The farmers grow crops for food and keep cows for milk and meat.

You have to pay a fee of £50 to go to school.

He built a windmill to generate electricity for his village.

He made a small test windmill and then went ahead with a big one.

Has he gone back to school?

Their small stock of food went down and down until there was almost nothing to eat.

If something goes on, it continues.

If something goes up, it rises or increases.

It's a home-made windmill – he built it himself.

It's too soon to answer that question – it's early days.

He said that he was a student at the African Leadership Academy in South Africa.

The media – newspapers, television and radio – are all interested in William's story.

The media interest has been phenomenal.

His family could have electric light and could pump water.

William was only fourteen years old but he didn't go to secondary school.

William's family didn't have enough food, so his dog died of starvation.

Their small stock of food got smaller and smaller.

There was no food in the village and some of the villagers died.

The windmill moves around in the wind and generates electricity.