$ sudo apt-get update
$ sudo apt-get install openclipart-libreoffice 

openclipart-libreoffice is installed in your system.

Make ensure the openclipart-libreoffice package were installed using the commands given below,

$ sudo dpkg-query -l | grep openclipart-libreoffice *

You will get with openclipart-libreoffice package name, version, architecture and description in a table

openclipart-libreoffice package basic information: