van - 18
taxi - 10
yacht - 14
airplane - 6
balloon - 15
bus - 4
tram - 13
car - 3
fire engine - 1
scooter - 9
carriage - 8
boat - 16
underground - 20
train - 2
bicycle - 7
helicopter - 11
ambulance - 5
ropeway - 12
truck - 17
ship - 19
