{"version":"1.0","type":"rich","title":"Activity6_task4_question","description":"This bubble chart visualizes movie runtime trends over time for top-rated films from IMDb, with each circle’s radius scaled by rating and color-coded by simplified genre. The D3 v7 visualization uses `scaleLinear` for year, runtime, and radius scales, plus `scaleOrdinal` with `schemeSet2` for genre colors. Data preprocessing splits multi-genre entries into top seven genres via `preprocessGenres`, while `parseRuntime` converts duration strings to minutes. An interactive legend allows highlighting specific genre bubbles through mouseover events and click-based filtering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/721599811ad649c6ad654da887c938d9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}