Modifiers matching wheel:

• single,
• small,
• thin,
• front,
• abrasive,
• bigger,
• main,
• thick,
• steerable,
• auxiliary,
• exposed,
• driving,
• smaller,
• individual,

Simple categories matching front:

• lamp,
• office,
• wheel,
• organization,
• organisation,
• group,
• piece,
• boundary,
• light,
• surface,