Stage 2 exam for nonsuch

[MRSMYM]

Hello,
if anyone can guide me here what is extended writing task means ,to be precise ?what kind of English writing will it be letter,story or report etc and how to prepare a child for this ?what kind of books will be helpful?
Any mums who have experience of previous years please help me 🙏🙏🙏.
Thanks

It was a letter this year. Shockingly there was no comprehension thereby making the writing task the longer/all marks one.