red / blue — regular gate
double red / double blue — vertical combo
red undergate / blue undergate — undergate
start / finish — passage gates
flip — reverse direction (no gate)
flag — bookmark for review
Any other word attaches to the next gate as a terrain note: crest, blind, steep, dip, flat, etc.
Separate with commas, periods, or newlines. Dictation usually gives you commas naturally. Color names don't need to match alternation — the parser uses whatever you say.