Text: Boosting saving and GDP is unlikely to prevent a rise in the share of GDP devoted to government spending on the elderly because economic growth also tends to increase health spending and raise retirement benefits- although with a lengthy lag for the latter.
Entailment: It is unlikely to prevent a rise in the share of government spending through boosting saving and GDP.
Contradiction: It is likely to prevent a rise in the share of government spending through boosting saving and GDP.