Complex sentence: Ottawa was located approximately midway between Toronto and Kingston in (Canada West) and Montreal and Quebec City in (Canada East) which was a geographical advantage as these four other cities had all been temporary capitals and were all candidates to be the permanent selection.
Split into simpler sentences: Ottawa was located approximately midway between Toronto and Kingston in (Canada West) and Montreal and Quebec City in (Canada East). This was a geographical advantage as these four other cities had all been temporary capitals and were all candidates to be the permanent selection.