.. toctree::
:maxdepth: 4
mwptoolkit.utils.preprocess_tool.dataset_operator
mwptoolkit.utils.preprocess_tool.equation_operator
mwptoolkit.utils.preprocess_tool.number_operator
mwptoolkit.utils.preprocess_tool.number_transfer
mwptoolkit.utils.preprocess_tool.sentence_operator