system_text = {
    'welcome': 
'''\nWelcome to adv.py!
Input a cardinal direction (e.g. 'n', 's', 'e', 'w') to explore the world.
Quit the game by inputting 'q'\n''',
    'key_error': 
'''\nIt seems you cannot go that way...
(Remember, type in the cardinal direction you wish to move as a single lower-case letter. For example, type in 'n', 's', 'w', 'e'. Not all directions are valid. Read the description carefully to find out where you can't go.)\n''',
}