Q: You are given the conttent of a table in the input (row by row). Generate an unambiguous question based on the information present in the table, such that: 1) It's answer is unique and is in the given table, 2) Its answer is a contiguous text span from the table. Avoid creating questions that can be answered correctly without reading/understanding the table
Table: ['Whitworth size (in)', 'Core diameter (in)', 'Threads per inch', 'Pitch (in)', 'Tapping drill size']. ['1/16', '0.0411', '60', '0.0167', 'Number Drill 56 (1.2 mm)']. ['3/32', '0.0672', '48', '0.0208', 'Number Drill 49 (1.85 mm)']. ['1/8', '0.0930', '40', '0.025', 'Number Drill 39 (2.55 mm)']. ['5/32', '0.1162', '32', '0.0313', 'Number Drill 30 (3.2 mm)']. ['3/16', '0.1341', '24', '0.0417', 'Number Drill 26 (3.7 mm)']. ['7/32', '0.1654', '24', '0.0417', 'Number Drill 16 (4.5 mm)']. ['1/4', '0.1860', '20', '0.05', 'Number Drill 9 (5.1 mm)']. ['5/16', '0.2414', '18', '0.0556', 'Letter Drill F (6.5 mm)']. ['3/8', '0.2950', '16', '0.0625', '5/16 in (7.94 mm)']. ['7/16', '0.3460', '14', '0.0714', 'Letter Drill U (9.3 mm)']. ['1/2', '0.3933', '12', '0.0833', 'Letter Drill Z (10.5 mm)']. ['9/16', '0.4558', '12', '0.0833', '12.1 mm (0.4764 in)']. ['5/8', '0.5086', '11', '0.0909', '13.5 mm (0.5315 in)']. ['11/16', '0.5711', '11', '0.0909', '15 mm (0.5906 in)']. ['3/4', '0.6219', '10', '0.1', '16.27 mm (0.6406 in)']. ['13/16', '0.6845', '10', '0.1', '18 mm (0.7087 in)']. ['7/8', '0.7327', '9', '0.1111', '19.25 mm (0.7579 in)']. ['15/16', '0.7953', '9', '0.1111', '20.75 mm (0.8169 in)']. ['1', '0.8399', '8', '0.125', '22 mm (0.8661 in)']. ['1 1/8', '0.9420', '7', '0.1429', '']. ['1 1/4', '1.0670', '7', '0.1429', '']. ['1 1/2', '1.2866', '6', '0.1667', '']. ['1 3/4', '1.4939', '5', '0.2', '']. ['2', '1.7154', '4.5', '0.2222', '']. ['2 1/2', '2.180', '4', '0.250', '']
A:
what are all of the whitworth sizes?