fact("coin" is "gold");
rule("gold coin" is "collectable" if "coin" is "gold");

fact("goal" is "touchable");

fact("shelly" is "dangerous");
fact("shelly" is "bouncable");
fact("shelly" can "walk");

fact("dreadtooth" is "dangerous");
fact("dreadtooth" can "walk");

action(if "shelly" is "bouncable" then "jump on" else "jump over");
action(if "dreadtooth" is "bouncable" then "jump on" else "jump over");

action(if "coin" is "collectable" then "collect" else "avoid");
action(if "goal" is "touchable" then "touch" else "avoid");