Analyze the relationship between 'Bonhams' and 'auction' within the context of the input sentence.
Options: parent organization, industry, product/material produced, developer

The 4 dollar (USD) Coiled Hair Stella, which was struck in the U.S. but never released for circulation, brought an astonishing 2,574,000 dollars (USD) at auction by Bonhams in Los Angeles on... on.aol.com
industry