In some languages the rook is called a ship: Thai เรือ ("reūa"), Armenian Նավակ ("navak"), Russian ладья ("ladya"), Javanese ꦥꦿꦲꦸ ("prahu"). This may be because of the use of an Arabic style V-shaped rook piece, which some may have mistaken for a ship. It is possible that the rendition comes from Sanskrit "roka" (ship); however, no "chaturanga" pieces were ever called a "roka". Murray argued that the Javanese could not visualize a chariot moving through the jungles in sweeping fashion as the rook. The only vehicle that moved in straight fashion was ship, thus they replaced it with prahu. Murray, however, did not give an explanation of why the Russians call the piece a "ship".