Complex sentence: Soliton Incorporated offers the SAX interpreter (Sharp APL for Unix) for Unix and Linux systems, which is a further development of I. P. Sharp Associates' Sharp APL product.
Split into simpler sentences: Soliton Incorporated offers the SAX interpreter, which stands for "S" harp "A" PL for "U" nix, for Unix and Linux systems. This is a further development of I. P. Sharp Associates' Sharp APL product.