$a=GO 2 STEPS FROM "ADDRESS_1015" OVER related where $$.Staff.STAFF_NAME IS NOT EMPTY and $$.Staff.STAFF_ROLE == "派送人员" YIELD related._dst as dst;
$b=GO 3 STEPS FROM "ADDRESS_1015" OVER related where $$.busi_store.BUSI_STORE_NAME IS NOT EMPTY YIELD properties($$);
GO 3 STEPS FROM "ADDRESS_1015" OVER related YIELD
case when $^.Staff.STAFF_NAME IS NOT EMPTY and $^.Staff.STAFF_ROLE == "派送人员" then related._src else null end AS dst,
case when $$.busi_store.BUSI_STORE_NAME IS NOT EMPTY then properties($$) else null end AS props;