blue
capital
city
cloud
cloudy
comfortable
company
czech
dark
day
electric
electricity
engine
heavy
holiday
international
journey
lane
locomotive
main
modern
movement
passenger
power
prague
quick
railroad
railway
red
republic
semaphore
signal
speed
spring
station
steel
strip
technology
tourism
track
train
transit
transport
travel
vacation
vehicle
way
wire
yellow