Input (grade 13): From these unified Netherlands, seven northern provinces would form the Republic of the Seven United Provinces in the 17th century, namely Holland, Zeeland, Gelderland, Utrecht, Friesland, Overijssel and Groningen.
Output (grade 10): From these unified Netherlands, seven northern provinces formed the Republic of the Seven United Provinces in the 16th century. These were Holland, Zeeland, Gelderland, Utrecht, Friesland, Overijssel and Groningen.