Refer to the input text as context and select the correct relationship between 'Nordstrom' and 'retail' from the available options.
Options: industry, distributed by, creator, operator

J.C. Penney rose 5.6 percent at $8.52, Nordstrom jumped 4.3 percent to $78.13 and was among the biggest percentage gainers in the S&P 500, while the S&P retail index rose 0.4 percent.
industry