81.   The breakdown of the China consensus seems to have several origins, one of them being the emergence of an odd coalition on the U.S. political scene.

82.   The celebration of the birth of Jesus, likewise, has hazy origins.

83.   The current discovery has its origins in another seminal paper, also published by Weinberg.

84.   The electric car question has its origins in the Clean Air Act, which set tough health standards for ozone exposure.

85.   The cystic fibrosis study had its origins in laboratory experiments indicating that it might be possible to cure the disease.

86.   The firing of Johnson, they say, had its origins not in Steinbrenner envy but in the famous incident when Lincoln passed judgment on Ulysses S. Grant.

87.   The forces keeping inflation in check have their origins in political and technological changes, economists say.

88.   The gold-filled cracks and crannies of the Mother Lode also have their origins in such seismic activity.

89.   The fires might also have another origin.

90.   The muscular movements of this smile-face have their origin in the scream, and it is frequently indicative of anxiety.