Facebook's revenue is heavily tied to participation.

The game is heavily tied to modern polling methods, using real-time feedback for how campaign strategy impacts polling numbers.

But analysts said the company was also heavily tied to the construction industry and that it might be hurt less by the slowdown than many of its competitors.

The campaign was heavily tied to the former member; not only was his father the Labor candidate, but his wife served as campaign manager.

The economy of Cleve is heavily tied to agriculture, and therefore rainfall.

As mentioned briefly in previous sections, cognitive and linguistic theories of composition are heavily tied to process theory.

The latter is a bluegrass program, which the radio station is heavily tied to.

During this time, all influences on art production were indigenous, with art heavily tied to religion and the ruling class.

The migration of P. corruscans is heavily tied to flooding.