Complex sentence: The Modula-2 plus programming language is a descendent of the Modula-2 programming language, developed at SRC (Systems Research Center) of DEC (Digital Equipment Corporation).
Split into simpler sentences: The Modula-2 + ("Modula-2 plus") programming language is a descendent of the Modula-2 programming language. It was developed at SRC (Systems Research Center) of DEC (Digital Equipment Corporation).