Add vertical word dataset: 8 subsets, 1000 samples each, font_sizes=[5, 10, 15, 20, 40, 60, 80, 100]

Add vertical word dataset: 5 subsets, 300 samples each, font_sizes=[5, 10, 15, 20, 40]

Add vertical word dataset: 5 subsets, 1000 samples each, font_sizes=[5, 10, 15, 20, 40]

Add vertical word dataset: 5 subsets, 1000 samples each, font_sizes=[20, 40, 60, 80, 100]

Add vertical word dataset: 5 subsets, 1000 samples each, font_sizes=[20, 40, 60, 80, 100]