The drink tap
Made-up practice story.
A made-up park sign points to a tap. Does that sign name the original water source? What could help?
Make something useful
Use a small caption, arrow model, table or spoken explanation for this exact question. Keep the supplied story beside you.
Grown-up help
Worked practice: It names a delivery point. A current public utility/council supply source could identify the stated system. We cannot infer a source from the sign alone.
Complete Day 31 plan. This is ordinary practice, not a held assessment source.