How to get the specific sites where differential splicing events occurs

[TuoCai2000]

Hi,thank you for developing BRIE!
I've processed all my data with Brie2, but I'm wondering how to look at specific sites where differential splicing occurs, such as which exon occurs, or which intron is spliced out?
I noticed in my brie_count.h5ad files,I can get the transcript id such as:ENSMUSG00000033543.AS2,but I could not connect them with the annotation (SE.lenient.gff3.gz). I wonder the relationship between ENMUSG.....AS2 between ENMUSG.......in/out,so that i can figure out the specific spliced sites.
Thank you so much !