L.S.,
I couldn’t find a (general) web-master for the SW-Prolog website, so I try via the discussion groups. Please accept my apologies before hand if this is not the correct way.
In the “What does SWI-Prolog Solutions b.v. offer?” section on the Commercial page, the question titled “Access whether SWI-Prolog is suitable for your problem” should probably written: “Assess whether SWI-Prolog is suitable for your problem”.
Best regards,
/Twan