Complex sentence: The first market of Singapore, a fish market, was located on the south bank of the Singapore River, but as part of Stamford Raffles's plan to remodel the town, an instruction to relocate this market to Telok Ayer was issued on 4 November 1822.
Split into simpler sentences: The first market of Singapore, a fish market, was located on the south bank of the Singapore River. However, as part of Stamford Raffles's plan to remodel the town, an instruction to relocate this market to Telok Ayer was issued on 4 November 1822.