micro family tree info format(UFTI)

UFTI is simple file format for file tree info, it looks like:

John: {
    mother Jane: {
        mother Karen
        father Joe
    }
# this is comment
    father Jack: {
        mother Alexandra
        father Arthur: {
            mother Lilly
        }
    }
    sister Alice: {
        husband Andrew: {
            mother Hannah
        }
        daughter Ian
    }
}
    

syntax is very simple and looks like json, C or nix, I don't honestly know. It's structure works like:

Name: {
    Relative Name: {
        (relatives)
    }
}
    

it's kinda still in beta(every mine project in beta, lol) because I don't know how to make normal and at least readable syntax