question: laptop:mouse
choices.label: A B C D
choices.text: voice recorder:tape mobile phone:bluetooth headset books:bookmarks tv:remote control
explanation: the supporting tool of the "laptop" is the "mouse", and the "mouse" can be used to operate most of the functions of a "laptop". the companion tool of the "voice recorder" is the "tape", but the "tape" cannot operate the "voice recorder". the supporting tool of the "mobile phone" is the "bluetooth headset", but the "bluetooth headset" can only partially operate the "mobile phone". the companion tool for "books" is "bookmarks", but "bookmarks" cannot operate "books". the supporting tool of the "tv" is the "remote control", which can be used to operate most functions of the "tv".
relation: laptop mouse R3.10
relation: tv remote control R3.10