visual_description, navigation_command
"stop","Stop"
"forward","StepForward"
"left","TurnLeft"
"right","TurnRight"
"backward","StepBackward"
"idle","Idle"
"a wooden bench sitting in the middle of a walkway", "TurnLeft"
"a wooden bench sitting in the middle of a walkway", "TurnRight"
"a wooden bench sitting in the middle of a walkway", "StepForward"
"a wall is in front","TurnRight"
"a wall is in front","TurnLeft"