replacement colliding can effect tracks to those hydrogen
colliding_with_obstacle is colliding. replacing_tire is replacement_event. colliding is event. colliding is not event. replacing_auto_fuse is not replacement_event. colliding is change_of_location. replacing_auto_fuse is replacement_event. colliding is not change_of_location. motor_oil_replacement is replacement_event. car_tire_replacement is replacement_event.