question: mosquito:mosquito net:mosquito coil
choices.label: A B C D
choices.text: yard:wooden gate:iron gate rainstorm:umbrella:raincoat windows:screens:curtains diseases:vaccines:germs
explanation: both "mosquito nets" and "mosquito coils" are tools to prevent the invasion of "mosquitoes". "mosquito nets" correspond to "mosquitoes" and "mosquito coils" correspond to "mosquitoes". the door of the "yard" can be either a "wooden door" or an "iron door". both "wooden door" and "iron door" are one type of door. both "umbrella" and "raincoat" are tools to prevent "storms", "umbrella" corresponds to "rainstorm", and "raincoat" corresponds to "rainstorm". "window" can install "screens", can hang "curtain", "screens" and "curtain" are the same type, but "screens", "curtain" are not tools of "window". "vaccines" can inhibit some "germs" and prevent the occurrence of "diseases". "vaccines" and "germs" are not the same type.
relation: mosquito net mosquito coil R2.4
relation: wooden gate iron gate R2.4
relation: umbrella raincoat R2.4
relation: screens curtains R2.4
relation: vaccines germs R3.10