[Tagging] Is it a man_made=mast?

[Mateusz Konieczny]

On wiki man_made=mast is described as "usually a small tower of only a
few meters
height" ( http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dmast )

Would it be correct to tag following objects using man_made=mast? IF
not - how these objects should be tagged:

bilboard from
https://www.google.com/maps/@50.0810992,19.8917204,3a,50.3y,302.62h,95.71t/data=!3m7!1e1!3m5!1sNXL7sQ0qqWC9QbkRhkqV5w!2e0!6s%2F%2Fgeo1.ggpht.com%2Fcbk%3Fpanoid%3DNXL7sQ0qqWC9QbkRhkqV5w%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D299.40079%26pitch%3D0!7i13312!8i6656

(I added also advertising=bilboard)

catenary pylon for tram from 

https://www.google.com/maps/@50.0817684,19.8806828,3a,62.2y,100.47h,93.49t/data=!3m7!1e1!3m5!1sMDeyVHtuPPVw9jxSn_smGg!2e0!6s%2F%2Fgeo1.ggpht.com%2Fcbk%3Fpanoid%3DMDeyVHtuPPVw9jxSn_smGg%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D38.211525%26pitch%3D0!7i13312!8i6656


(I added also railway=pylon as I found no evidence of people tagging
individual pylons)