Update README.md

README.md

@@ -37,15 +37,15 @@ See [mathqa HF dataset](https://huggingface.co/datasets/math_qa) and [official w
 Columns:
 
 - `question` - th description of a mathematical problem in natural language
-- `chain` - Solution in the form of step-by-step calculations encoded in simple html-like language. computed from `annotated_formula` column
-- `result` - the result of the problem as string (can be integer, floating number, fraction, ...)
-- `result_float` - the result converted to a float
 - `options` - dictionary with choices 'a' to 'e' as possible solutions
-- `options_num` - same as 'options', but with simple parsing to extract the number from string. This is best-effort only - not all values are (or can be) extracted correctly
-- `correct_option` - correct options, one of 'a', ..., 'e', should match with `result`
+- `correct_option` - one of 'a', 'b', 'c', 'd', 'e' - should match with `result`
+- `chain` - solution in the form of step-by-step calculations encoded in simple html-like language. computed from `annotated_formula` column
+- `result` - the numerical result of the problem as a string (can be integer, floating number, fraction, ...)
+- `result_float` - the result converted to a float
+- `options_num` - same as 'options', but parsed to extract the number from string. This is best-effort only - not all values are (or can be) extracted correctly
 - `rationale` - human-annotated free-text reasoning that leads to the correct answer
 - `annotated_formula` - human-annotated nested expression that (approximately) evaluates to the selected correct answer
-- `linear_formula` - same as `annotated_formula`, but linearized. Provided by original math_qa authors
+- `linear_formula` - same as `annotated_formula`, but linearized by original math_qa authors
 - `index` - index of the example in the original math_qa dataset