Complex sentence: In February 2010, It was Announced that Centrebus Calderdale (Centrebus Holdings) had ordered 4 Optare Tempos for its fleet, to replace the various Dennis Darts on hire.
Split into simpler sentences: In February 2010, It was Announced that Centrebus Calderdale (Centrebus Holdings) had ordered 4 Optare Tempos for its fleet. To replace the various Dennis Darts on hire.