Sentence rearrangement (PQRS): Assemble the narrative about walking along a railway line where others were not allowed, noting the father’s right as railway staff; select the correct order of the parts.

Given data

• Starter: 'We went'
• P: along the railway line
• R: where other people not allowed to go
• S: but daddy belonged to the railway
• Q: and had a right to

Concept/Approach
First set the route (P), then the restriction (R). Provide the exception (S) and conclude with the justification verb phrase (Q) attached to 'daddy'.

Step-by-step reconstruction
Combine as: 'We went along the railway line where other people were not allowed to go, but daddy belonged to the railway and had a right to.'Sequence: PRSQ.

Verification
The concessive 'but' correctly precedes the justification; Q naturally completes S.

Common pitfalls
Placing Q before S leaves 'and had a right to' without a clear subject.

Final Answer
Correct order: PRSQ.