Attention! nun instead of None

[insafim]

273	How many dressers are visible in the image? Options: A: nan, B: Three, C: Two, D: One		A	fine-grained perception	object counting	{ "source": "SEEDBench_IMG", "split": "val", "image_path": "images/273.jpg" }

268	How many tree stumps are there in the image? Options: A: nan, B: Two, C: One, D: Cannot be determined		A	fine-grained perception	object counting	{ "source": "SEEDBench_IMG", "split": "val", "image_path": "images/268.jpg" }

391	How many angels have halos? Options: A: Two, B: One, C: nan, D: Three		D	fine-grained perception	object counting	{ "source": "SEEDBench_IMG", "split": "val", "image_path": "images/391.jpg" }

In these three questions option "nan" should be "None"