What is the fine-grained topic of the following text: Online food shopping retail business Aytac has purchased 71,200 sq ft at the Whitelands Road development for £3.35m, while Belfield Furnishings has leased 93,000 sq ft on an 11-year lease term at £4.25/sq ft. Only return the topic.
Commercial real estate transactions in the online food and furnishings retail sectors