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.
In the context of the input sentence, determine the relationship between 'Nordstrom' and 'retail'.
Options: industry, distributed by, operator, creator