<prompt> Translate the following text to SwahiliConcealed and protected against atmospheric changes for 17,000 years, these awe-inspiring frescoes and engravings of bulls, horses, ibex, bison, and deer were discovered by four teenagers chasing a dog in 1940.  <response>: Mwaka 1940 vijana wanne walipokuwa wakimfukuza mbwa walivumbua michoro hiyo yenye kuvutia ya ngombe, farasi, mbuzi, nyati, na nyati, ambayo ilikuwa imefichwa na kuhifadhiwa kwa miaka 17,000. 