IN: If one pair of siblings is married to another pair of siblings, the siblings-in-law are thus doubly related, each of the four both through one's spouse and through one's sibling, while the children of the two couples are double cousins.
can a brother in law and sister in law get married?

OUT: yes

IN: This is a list of current and former locks and dams of the Upper Mississippi River which ends at the Mississippi River's confluence with the Ohio River at Cairo, Illinois.
is there a dam on the mississippi river?

OUT: yes

IN: The Infinite Sea is a young adult science fiction novel written by American author Rick Yancey. It was published on September 16, 2014 by G.P. Putnam's Sons. The novel is the second in The 5th Wave trilogy, preceded by The 5th Wave and followed by The Last Star. After fleeing from a camp established by aliens, 16-year-old Cassie Sullivan, her brother and a squad of child soldiers attempt to prevent the extermination of the human race.
is there a sequal to the fifth wave?

OUT: yes

IN: Although this is Aloma Wright's last regular appearance as Laverne Roberts, she returned in the Season 7 episode ''My Hard Labor'' as Nurse Shirley, whose similarities to Laverne go unnoticed by all except J.D. Early reports stated that Aloma Wright would return as Laverne's alcoholic twin sister. Wright would reprise her role as Laverne in a flashback in the season 8 episode ''My Comedy Show'' and in the season eight finale, ''My Finale''.
did laverne from scrubs die in real life?

OUT:
no