The phrase "its purpose of" is grammatically correct and can be used in written English, however it may not be the most common or natural way to express that idea.
A more common and natural way to express purpose in a sentence would be "for the purpose of." Example: The purpose of this meeting is to discuss the new company policies. Alternatively, you could use "its purpose is to" or "it aims to." Example: Its purpose is to provide guidance for future projects. Therefore, while "its purpose of" is grammatically correct, it may not be the most commonly used phrasing in written English.
When it is done well, when it accomplishes its purpose of making human action truly worth watching, we come to care about the characters.
After all, once it had finished its purpose of childbearing it was a useless organ whose only final act could be malignant transformation.
The plot device may be clumsy, but it serves its purpose of putting Guilbert aboard this doomed, drifting ship of state while absolving him of any moral compromise; he's only along for the ride.
All in all, the visit did not live up to the media hype, but it served its purpose of maintaining high-level engagement with Pakistan in the hope that incremental progress could be made in resolving the difficult issues that bedevil the bilateral relationship.
She continued, "It fulfills its purpose of underscoring the emotion of the story by being moody and slow to change melodically and harmonically, and by using many pregnant pauses and minimalist-leaning repetitive figures".
Once it served its purpose of justifying the start of the bombing campaign in Syria, the Khorasan narrative simply evaporated as quickly as it materialized...Literally within a matter of days, we went from "perhaps in its final stages of planning its attack" (CNN) to "plotting as 'aspirational'" and "there did not yet seem to be a concrete plan in the works" (NYT).
But if it is intriguing, it will serve its purpose of promoting an image of BP as environmentally conscious and forward-looking.
It succeeded in its purpose of making the Saturday afternoon event more interesting than it has been in recent years — after an experiment with a single-lap system — despite the more complicated approach of the new knockout formula.
In Statism and Anarchy (1874), for example, Bakunin attacked Marx's view that the transitional state the dictatorship of the proletariat would simply wither away after it had served its purpose of preventing a bourgeois counterrevolution.
Once the condom breaks or comes off inside me, it completely defeats its purpose of preventing the transmission of STDs.
Through Grossman, Nelson said he would not press for the returning of the painting, as it had fulfilled its purpose of "drawing attention to his 'iconoclastic' work".
