Tom is twenty-five years old. He has been working as a software engineer for five years. Sarah is thirty years old and she is a teacher at a local high school. They met four years ago at a friend's wedding and have been dating ever since. Emily is twenty-two and she is currently studying law at university. She hopes to become a lawyer one day. John is forty and he runs his own business. He started it ten years ago and it has grown significantly since then.