question: contact:touch
choices.label: A B C D
choices.text: sway:shake advance:progress science:learning take off:fly
explanation: to have "contact" there must be "touch". "swaying" and "shaking" are very close. both "advance" and "progress" refer to forward development, and "advance" and "progress" are very close. "science" is "learned". to "fly" you have to "take off".
relation: sway shake R1.1
relation: advance progress R1.1
relation: science learning R4.2
relation: take off fly R5.4