Text: Having lost the use of his left arm in warding off the machete attack during a robbery attempt, Joseph said he found it increasingly difficult to negotiate the five flights of stairs lugging groceries or laundry on the frequent occasions when the building's elevator was out of order.
Entailment: It was difficult for Joseph to carry things upstairs after he lost the use of his left arm.
Contradiction: Joseph had not problems associated with living on the fifth floor.