Category Nuances for side_wall:

• external,
• earthen,
• solid,
• side,
• accessible,
• moveable,
• unconditioned,
• stationary,
• auxiliary,
• metal,
• interior,
• difficult,
• parallel,

Simple Categories for side_wall:

• area,
• object,
• construction,
• surface,
• obstacle,
• space,
• wall,
• structure,
• part,
• formation,