 The rock cut architecture of the caves has been dated to between the 5th and 8th centuries , although the identity of the original builders is still a subject of debate . The caves are hewn from solid basalt rock . All the caves were also originally painted in the past , but now only traces remain . 
 The rock cut architecture of the caves <a href='been_done' title='1'><mark>has</mark></a> been dated to between the 5th and 8th centuries , although the identity of the original builders <a href='drop_aux' title='2'><mark>is</mark></a>still a subject of debate . The caves are hewn from solid basalt rock . All the caves <a href='uninflect' title='3'><mark>were</mark></a> also originally painted in the past , but now only traces remain . 
Da rock cut architecture of tdacaves done been dated to between the 5th and 8th centuries , although thdadentity of the original builders still a subject of debate . The caves r hewn from solid basalt rock . alll the caves was also originally painted in the past , but now only traces remain .