From your book: A Warning Around the Bend
Where does each message go?
A checked road report can warn a driver about a branch around a bend.
MESSAGE STEP 1
Road team reports the branch
Steer car B to the matching sign.
Drag up to a sign · or tap a sign
Keyboard: ← → then Enter
The warning reached car B!
Report → relay → check → alert driver.
Check source, time and place.
The driver slows and stays alert.