# Addressing Siblings This is a more advanced concept and it's typically not needed frequently. So feel free to skip this section. As described in section [Hierarchy](/using-zerowork/using-selectors/how-to-build-custom-selectors/hierarchy.md), elements can be defined by their hierarchy if they follow each other in a 'narrowing down' fashion. That means they can't be on the same level. If you need to address a tag which is on the same level but cannot or is not intended to be addressed in a list (list as described here [Lists: Incremental CSS Selectors](/using-zerowork/using-selectors/how-to-build-custom-selectors/lists-incremental-css-selectors.md)), you can use tilde \~ for loose sibling (any of the following elements on that hierarchy level) and + for exact sibling (the next element on that hierarchy level). \ \ This might be confusing at a first glance, so you might want to check the video below for a more hands-on demonstration. ### Video Tutorial: Siblings {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.zerowork.io/using-zerowork/using-selectors/how-to-build-custom-selectors/addressing-siblings.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.