<prompt> Nikeza impendulo yalo mbuzo oyinkimbinkimbi: I-Cave-In-Rock, e-Illinois yayiyisiphephelo sababulali abanobudlovaabaphangi abangabodwa ababesebenza ngasiphi ikhulu leminyaka?  <response>: eyayisebenza eTennessee, eKentucky, e-Illinois, naseMississippi, ngasekupheleni kwekhulu le-18. 