the N be to-inf
The 'aim' group
These nouns refer to an aim or objective.
aim goal idea intent intention object objective point priority purpose
The aim is to encourage town-dwellers to grow vegetables on small plots of land.
The idea was to make the design of the boat simple.
With aim, goal, idea, object, objective, point, and purpose, the noun may be followed by a prepositional phrase beginning with of. This pattern is the N of n v-link to-inf.
He said the purpose of his visit was to promote cooperation for mutual benefit.