The poet Lemm Sissay was cast away by Kirsty Young in 2015.

As a poet, writer and playwright, much of his work tells the story of his search for his birth parents. Born to a young Ethiopian woman who wanted him temporarily looked after while she completed her studies, he was with a foster family until he was 12.

Lemn told Kirsty how he felt after his foster family broke ties with him.

You can listen to the full episode on BBC Sounds.