sentence: This Saturday , I started a new book by Francine River , the book is called The Warrior . I haven't finished the first chapter , but I find the book very good .
modified: This Saturday I start a new book by Francine River , the book could The Warior I haven't finish the first chapter but I find the book very good .
transformation: PUNCT, VERB:TENSE, VERB, OTHER, VERB:FORM, PUNCT