The status or condition arising from a pledge by a debtor of his or her personal services or of those of a person under his or her control as security for a debt, if the value of those services as reasonably assessed is not applied towards the liquidation of the debt or the length and nature of those services are not respectively limited and defined.^*

^{* Adapted from the Supplementary Convention on the Abolition of Slavery, the Slave Trade and Institutions and Practices Similar to Slavery, Article 1}