It is correct to take the write off in 2024 as an adjusting subsequent event. It wasn't written off because of collectibility; it was written off by agreement. NWBO owed 17 million in receivables to Advent. That amount was reduced to Zero. That 17 million, subject to adjustments, will be the amount consideration paid to Toucan for the shares of Advent. If it wasn't written off, then NWBO would owe 17 million to Toucan and still owe Advent 17 million. I should note this is a GAAP explanation and I'm assuming the UK FRS version is identical.