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  1. Additional Grant of Patent Rights Version 2
  2. "Software" means the stats software distributed by Facebook, Inc.
  3. Facebook, Inc. ("Facebook") hereby grants to each recipient of the Software
  4. ("you") a perpetual, worldwide, royalty-free, non-exclusive, irrevocable
  5. (subject to the termination provision below) license under any Necessary
  6. Claims, to make, have made, use, sell, offer to sell, import, and otherwise
  7. transfer the Software. For avoidance of doubt, no license is granted under
  8. Facebook’s rights in any patent claims that are infringed by (i) modifications
  9. to the Software made by you or any third party or (ii) the Software in
  10. combination with any software or other technology.
  11. The license granted hereunder will terminate, automatically and without notice,
  12. if you (or any of your subsidiaries, corporate affiliates or agents) initiate
  13. directly or indirectly, or take a direct financial interest in, any Patent
  14. Assertion: (i) against Facebook or any of its subsidiaries or corporate
  15. affiliates, (ii) against any party if such Patent Assertion arises in whole or
  16. in part from any software, technology, product or service of Facebook or any of
  17. its subsidiaries or corporate affiliates, or (iii) against any party relating
  18. to the Software. Notwithstanding the foregoing, if Facebook or any of its
  19. subsidiaries or corporate affiliates files a lawsuit alleging patent
  20. infringement against you in the first instance, and you respond by filing a
  21. patent infringement counterclaim in that lawsuit against that party that is
  22. unrelated to the Software, the license granted hereunder will not terminate
  23. under section (i) of this paragraph due to such counterclaim.
  24. A "Necessary Claim" is a claim of a patent owned by Facebook that is
  25. necessarily infringed by the Software standing alone.
  26. A "Patent Assertion" is any lawsuit or other action alleging direct, indirect,
  27. or contributory infringement or inducement to infringe any patent, including a
  28. cross-claim or counterclaim.