Is there any serious project going on using PROLOG? [closed]

Question

   **Is there any serious project going on using** 

_{(source: atarimagazines.com)}

                         **?**

Answer 1

SICStus and LPA Prolog cite selected customer applications that sound very serious, for example:

• Clarissa, a fully voice-operated procedure browser developed by the NASA Intelligent Systems Division.

• A dispensation order generation algorithm for Pyrosequencing's sequence analysis instruments, using constraint programming with SICStus.

• Logistics applications by RedPrairie.

Source:

https://sicstus.sics.se/customers.html

Answer 2

SWI Prolog claims 10,000 downloads per month, so somebody must be using it for something.