Section - Leaping and Crossing
Understand "jump in/into/across/over [something]" or "dive in/into [something]" as leaping. Understand "jump off/from [something]" or "jump off/out of [something]" as leaping. Understand "jump on/onto [something]" as entering.
Leaping is an action applying to one thing.
Carry out leaping:
if noun is not enterable, try jumping instead;
try entering noun.
Understand "cross [something]" or "cross over [something]" as crossing. Understand "cross" as crossing.
Crossing is an action applying to one thing.
Carry out crossing: say "That's not something you can cross."