Part 1. Definition
Two analogies that relate places/locations to the associated travel mode is given in the form "A : B. C : ?". "A : B" relates place A to travel mode B. Your task is to replace the question mark (?) with the appropriate travel mode for the given place C, following the "A : B" relation.
Part 2. Example
moon : rocket. france : ?
Answer: airplane
Explanation: Rockets are used to travel to the moon - hence the given analogy relates places/locations to the associated travel mode , and the answer also does the same
Part 3. Exercise
mainland : boat. mars : ?
Answer:
spaceship