[Q]: Four other men who were also charged in June have already pleaded guilty .

Four of the defendants have pleaded guilty to weapons charges and other counts .
****
[A]: yes

[Q]: On Friday , the Food and Drug Administration approved the use of silicone breast implants with conditions .

The drug was approved for use Friday by the Food and Drug Administration .
****
[A]: no

[Q]: Also in Mosul , rebel gunmen on Friday assassinated a Sunni Muslim tribal leader who backed the coalition .

Near a mosque in the northern town of Mosul , rebel gunmen also assassinated a Sunni Muslim tribal leader who backed the coalition .
****
[A]: yes

[Q]: The agent , Bassem Youssef , filed the lawsuit on Friday in Federal District Court for the District of Columbia .

The lawsuit was filed on Friday at the US District Court for the District of Columbia .
****
[A]:
yes