Last week CBPE, a private equity firm, sold French restaurant chain Cote to rival BC Partners for £250m, while Prezzo was recently taken private by TPG (Taiwan OTC: 6521.TWO - news ) .
Utilize the input text as a context reference, choose the right relationship between 'BC Partners' and 'private equity' from the options.
Options: director/manager, subsidiary, product/material produced, parent organization