That motion, like this one, arose out of parliamentary debate during the Thirty-fifth Parliament on Bill C-41, to amend the Divorce Act, the Family Orders and Agreements Enforcement Assistance Act, the Garnishment, Attachment and Pension Diversion Act and the Canada Shipping Act.
There have been dozens of sessions of Parliament.
The text references the Thirty-fifth Parliament, so there have been nearly 3 dozen sessions of Parliament, which qualifies as 'dozens' - a quantity that fooled the model. 
( z1 session :mod ( z2 government-organization :name ( z3 name :op "Parliament" ) ) :quant ( z4 multiple :op 12 ) )