sql - query from the child to the great great grandfather list in ORACLE 12c -

i need sql query. have table:

item     parent 1          null 2           1 3           2 4           2 5           3 6           5 7           5 8           4 9           8 10          1 11          10 12          10 13          8        

chosen item, i'd need following result:

chosen item 9: family list: 8,4,2,1

you can resolve using start with , connect by

oracle documentation hierarchical queries

the sql in case following

select item    t start item = 9  connect prior parent = item