question: sabre:scabbard
choices.label: A B C D
choices.text: ink:cartridge rocket:launch pad brush:cap travel shoes:travel bag
explanation: the "scabbard" is to keep the "sabre" inside for the purpose of protection. "Ink cartridge" is to place"ink", and "ink" is not for inserting "ink cartridge". the "launch pad" is to fix the "rocket" and has no protective effect. the "cap" is to keep the "brush" inside and plays a protective role. "travel bag" is the place where "travel shoes" are placed, and "travel shoes" are not inserted into "travel bag".
relation: sabre scabbard R3.10
relation: brush cap R3.10