The next sentence: ¿Dónde está la parada de autobús línea cuatro?
Someone points you to a shelter a little further up the street. There is thunder there, with branches all around it (dónde está) – you already know this image from the airport. The people standing inside in the dry are laughing (la).
Outside you watch a parade with music, eating dates as you go (parada). The parade stretches far back (de) to where you can see a bus (autobús). On top of the bus there is a ruler fixed like an advertising board – in German a “Lineal” (línea) – and on it, in big figures, the number 4 (cuatro).