Complex sentence: The Squeak programming language is a Smalltalk implementation, derived directly from Smalltalk-80 by a group at Apple Computer that included some of the original Smalltalk-80 developers.
Split into simpler sentences: The Squeak programming language is a Smalltalk implementation. It was derived directly from Smalltalk-80 by a group at Apple Computer that included some of the original Smalltalk-80 developers.