The jaw is an ongoing source of conflict between Peltier and Leavenworth.
The history of the device is an ongoing source of fascination.
Investing in musicians is ultimately about building a back catalogue of hits that provide an ongoing source of revenues.
Three Rivers is supposed to provide Kadmon with an ongoing source of revenue to help develop other drugs.
How they died out, and why, and to what extent they may have interbred with anatomically modern humans, is an ongoing source of debate.
Stem cells are an ongoing source of the differentiated cells that make up the tissues and organs of animals and plants.
"But you can't just go out and occupy the land for decades while doing essentially nothing, except be an ongoing source of pollution".
The funding problems, which the mayor blames on a public private partnership programme imposed by the government, are an ongoing source of friction between City Hall and the Department for Transport.
Our taxation arrangements mean that the Commonwealth raises most of the money centrally, but the eight states and territories are responsible for most of the service provision, creating an ongoing source of tension and conflict.
An ongoing source of intrigue was whether one-half of "Brangelina" might detach itself and return to its less symmetrical prior host, thus creating a less mellifluous-sounding hybrid, "Pittiston".
