Sentence 1: Its paintings comprise a Rembrandt portrait of Saskia van Uylenburgh, dated the year they were married; Hieronymus Bosch at his most diabolical; a rich repository of Goya official portraits, colorful sketches of real life, and haunting scenes of witches and horrors; El Greco's sensitive St. Francis of Assisi and an early (1562) picture from his Venetian period; and the English painters Reynolds, Gainsborough, and Constable.

Sentence 2: There is a Rembrandt and a Goya painting available.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: But, these estimates do not reflect the growing cost of the SMI component, which accounts for somewhat more than 40 percent of Medicare spending.

Sentence 2: The flaw in the estimates will make it difficult to decide on a sound policy if this data is relied upon.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: yeah i'm not sure

Sentence 2: I am certain of it.
Is this second sentence entailed by the first?

Answer:
no