Use "fsf" in a sentence

1. Consistent with its goals, the FSF aims to use only free software on its own computers.

2. The FSF holds the copyrights on many pieces of the GNU system, such as GNU Compiler Collection.

3. The fractal structure factors (FSF ) of spinel from ultramafic xenolith, harzburgite, dunite and chromite have been calculated using a new method presented by Shen (19.

4. In their opinion ODF is free of legal encumbrances that would prevent its use in free and open source software, as distributed under licenses authored by Apache and the FSF.

5. Copyleft is a term coined by the FSF and implies that if you distribute a derivative work of a work under a Copyleft license, you must distribute the derivative under the same license as the original work (it may however be combined with works under a permissive license that is deemed "compatible", read on).