Of a ...
Doctor - My uncle is a GP. GP's treat the health of you and your family. Sometimes they refer you to hospital.
Speech and Language Therapist - My auntie is a Speech and Language Therapist. They work with children and adults to help them communicate the best they can.
Fire Officer - My dad is a Fire Officer.They make sure people are safe in the community and he also makes sure firefighters are well trained with the right equipment.