告知

告 = ⺧ + 口 : Guy Fawkes is informing the golden calf that it is not allowed to eat mandarins any more in the aorta's bathroom by pointing at a big LED screen stating so.

告 = ⺧ + 口 : Mnemonic symbol: one of these LED panels with public announcements which scroll horizontally over the panel.

知 = 口 + 矢 : Mnemonic symbol: Francis Bacon is attributed to have stated "scientia potentia est", "knowledge is power". I'll thus represent 知 by Francis Bacon. Francis Bacon (知) and James II of England (zh) are playing darts (矢) in front of the space station (Ø1). Because they lack a dart board they just use a mandarin (口).