A more thorough explanation:

A labor lien is a type of lien that gives laborers a security interest in property until they have been paid for their work on that property. It is similar to a mechanic's lien, which is a legal claim against a property that has been improved or repaired by a contractor or subcontractor who has not been paid for their work.

John is a contractor who was hired to renovate a house. He completed the work, but the homeowner refused to pay him. John can file a labor lien against the property, which will give him a security interest in the property until he is paid for his work. If the homeowner tries to sell the property, John's lien will need to be satisfied before the sale can go through.

Another example could be a landscaper who was hired to maintain a commercial property. If the property owner fails to pay the landscaper for their services, the landscaper can file a labor lien against the property to ensure they are compensated for their work.

These examples illustrate how a labor lien can be used to protect the rights of laborers who have not been paid for their work. By filing a labor lien, they can ensure that they are compensated for their services and that their hard work is not taken for granted.