<prompt> Kalima dǝga sǝkǝ: World exhibitions dǝ awo bǝlin ro wallono kǝla fǝtebe lan suro karnu kǝn mewuntilonyen. Ilmu kimiyabe-a kuru nzundube-a fuwuzana. Kәrmu Dunyabe duwu fal ro sәdәna suro reta kәn indimin karnu kǝn mewuntilonben. Loktu tulur ye lan, bikke chess lardǝwa gade-gadeye gayirtǝ dǝ shima nasha bikke dǝye London 1851,  <response>: London saa 1862, Paris saa 1867, Vienna saa 1873, Philadelphia saa 1876, Paris saa 1878, Paris saa 1900. Bikke kǝn yakkǝmi dǝ Grand Cercle, 10 boulevard Montmartre, Paris lan kǝntagǝ June ye kǝn 4 ye-a 11 ye-a ro wallono. Kam mewun yakkə-a mewun yakkə-a ye bikke makkarye fal lan bikke makkarye fal ro sadəna. Kǝrtǝ dǝ zero ro isǝna. Loktә kәnәngatә dә awa fal lan kәnәngatәn 10 ye. 