July 30 (Reuters) - Indoor cycling fitness chain SoulCycle Inc filed with U.S. regulators for an initial public offering of common stock, underscoring the rising popularity of boutique chains that cater to specific workout methods such as spinning, yoga and barre.
Refer to the input text as context and select the correct relationship between 'SoulCycle' and 'Indoor cycling' from the available options.
Options: location of formation, creator, industry, parent organization