Anchor: Social Security income for the highest fifth may be lower than for the previous fifth because, among other possible reasons, some elderly workers or their spouses may not yet be collecting benefits.
Entailed: Social Security income depends on their circumstancecs
Contradiction: The highest fifth have social security income higher than the previous fifth.
Contradiction: Their husbands and wives came back and they turned down all opportunities to get on camera.
Contradiction: Likely regarding grade 1. 
Contradiction: I am on the plane.
Contradiction: A band is playing.