Rearrange the parts to form a meaningful and coherent sentence:
P: in maintaining
Q: the police force
R: is a vital force
S: law and order
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When rearranging sentence parts:
1. Identify the subject (typically comes first)
2. Look for subject-verb agreement
3. Connect phrases logically (purpose/action usually comes last)
Step 1: Analyze the logical flow of the sentence parts. Step 2: The subject should come first ("the police force"), followed by its description ("is a vital force"), then its purpose ("in maintaining law and order"). Step 3: This gives the order: Q → R → P → S (QRPS). The complete sentence is: "The police force is a vital force in maintaining law and order."