Number of rows: 6365808

Number of unique Urdu sentences: 1087220
Number of unique Roman-Urdu sentences: 3999102

Number of rows where both column values are the same: 167
Number of rows where both column values are different: 6365641

Number of rows where the Urdu sentence appears only once in the dataset: 90637
Number of rows where the Roman-Urdu sentence appears only once in the dataset: 3165765

Number of rows where the combination occurs "only once" in the whole dataset: 3170561
Number of unique pairs of Urdu and Roman-Urdu sentences: 4003784

Number of sentences which are less than 3 words:  2321