 
 <prompt> E concern me how big di mosaic be? Based on di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Di gr8 Navicella mosaic (1305–1313) for di atrium of di Old St. Peter's dey attribute to Giotto di Bondone. Di giant mosaic, wey Cardinal Jacopo Stefaneschi commission, bin dey originally for di eastern porch of di old basilica and e dey occupy di whole wall above di entrance arcade wey dey face di courtyard. E show St. Peter dey waka for top water. Dis extraordinary work mostly spoil during di construction of di new St. Peter's for di 17th century. Navicella mean "small ship" wey dey refer to di big boat wey dey dominate di scene, and di sail, wey dey filled by di storm, dey loom over di horizon. Such natural representation of a seascape dey only known from ancient works of art.``` 