Complex sentence: In a decision later known as the "Patriation Reference", the court ruled that such a convention existed but did not prevent the federal parliament from attempting to amend the constitution without provincial consent and it was not the role of the courts to enforce constitutional conventions.
Split into simpler sentences: In a decision that came to be known as the "Patriation Reference", the court ruled that such a convention did exist, but it did not legally prevent the federal parliament from unilaterally seeking to amend the constitution without provincial consent. In addition, it was not the role of the courts to enforce constitutional conventions.