Mk
5:20a ... And he-left and began to-preach in the Decapolis, ...

Verse 20 has 3 phrases and 16 narrator words. The 1st phrase contains these 8 narrator words ... Kai apēlthen kai ērksato kērussein en tē dekapolei (And he-left and began to-preach in the Decapolis, ... ).
The 8 narrator words are bottom up. The first five words "Kai apēlthen kai ērksato kērussein" (And he left, and he began to preach) are tangent to the former demoniac. The preposition "en" (in) is tangent to the center of the Decopolis and to his four people. The noun "tē dekapolei" (the Decapolis) is tangent to the border lines of the city. The former demoniac has departed from Jesus to preach in the Dekopolis where he is in position for the next diagram.
5:19d < Verse > 5:20b