Abstract The concept of a crisp graph is essential in the study of outerplanar graphs because outerplanar graphs are a unique type of planar graphs containing special characteristics. One of the core concepts of crisp graphs. the notion of a subgraph. is utilized primarily to solve difficult data problems. https://www.bekindtopets.com/top-super-Coaster-Corky-Golden-Lalaland-save-more/