Since I'm not familiar with this particular 'the girl on the basement' true story, its significance could vary greatly. If it's a story about a girl being held captive in a basement, it would be significant in highlighting the issue of human rights and safety. It could also be significant in the context of the community where it happened, perhaps bringing awareness to security issues or the importance of looking out for one another. Moreover, if it's a story of self - discovery or growth for the girl while in the basement, it could be a story of inspiration.
As I don't know the exact story, it's hard to say. But generally, if it's a true story about a girl in the basement, it might be significant in terms of human survival, or it could show the power of hope in difficult situations. Maybe it also has significance in terms of family relationships if she was trapped there due to family issues.