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 ) .
Take context from the input text and decide on the accurate relationship between 'BC Partners' and 'private equity' from the options provided.
Options: director/manager, product/material produced, subsidiary, parent organization