The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a number. Decide on the most logical order and enter the sequence of numbers (digits only, no other characters). 1. Located in the foothills of the Sion Fort, the lake is a Grade II-A heritage structure, dating back to the 17th century. 2. Once home to several marine creatures, the lake is now surrounded by high-rise residential buildings. 3. The Municipal Corporation is set to breathe life back into the city's Sion Talao (Lake) with the rejuvenation and beautification of the centuries-old lake. 4. Over the years, the lake has lost its prominence. 5. Earlier the Talao was a known natural water tank with the Sion hillock expanding around it like an enclosing wall.