Complex sentence: The bas-reliefs of Banteay Chhmar once displayed eight exceptional Avalokiteśvaras in the west gallery, but now only two of these images remain: in January 1999 some looters dismantled sections of the western gallery wall containing these wonderful bas-reliefs.
Split into simpler sentences: The bas-reliefs of Banteay Chhmar once displayed eight exceptional Avalokiteśvaras in the west gallery, but now only two remain. In January 1999 looters dismantled sections of the western gallery wall containing these bas-reliefs.