Odd One Out — Sword, Knife, and Saw are primarily cutting implements; Shovel is primarily a digging/turning tool. Identify the odd one and explain.

Introduction / Context:
Tool classification depends on principal function. Three items are designed to sever material; one is designed to move or loosen material rather than cut it.

Given Data / Assumptions:

• Sword: edged weapon for cutting/slashing.
• Knife: edged utensil/tool for cutting.
• Saw: toothed cutting tool for wood/metal, etc.
• Shovel: scoop/spade for digging, lifting, and moving soil or aggregates.

Concept / Approach:
Group by function: cutting vs digging/handling.

Step-by-Step Solution:
Sword → cutting.Knife → cutting.Saw → cutting by abrasion/teeth.Shovel → digging/scooping, not primarily cutting.

Verification / Alternative check:
Edge geometry: the first three rely on sharp edges/teeth to separate material; a shovel’s leading edge is not intended for precise cut separation.

Why Other Options Are Wrong:

• Sword: cutting implement.
• Knife: cutting implement.
• Saw: cutting implement.

Common Pitfalls:
Equating incidental slicing action while digging with a tool’s primary design; purpose dominates classification.

Final Answer:
Shovel