<prompt> Translate the following text to SwahiliThe Castle Rock and Arthurs Seat are the remains of lava streams that hardened after the two volcanoes around them became dormant and cold.  <response>: Mwamba wa Castle na kiti cha Arthur ni mabaki ya mito ya lava ambayo ilizidi kuwa ngumu baada ya volkano mbili zilizowazunguka kuwa zimelala na baridi. 