Step 4Your options are text too

The options you pass in

score("How offensive is the tone?", [ … ])
0Polite or neutral
1Critical but respectful
2Combative or sarcastic toward people
3Insults, hate or personal attacks
insult zone
politeness zone

The meaning space

0 · Polite
1 · Critical
2 · Combative
3 · Insults
YOU'RE UGLY
closest = most compatible → 3
Descriptions are half of the comparison.