Sentence 1: Fish (heads discreetly wrapped in paper) are still hung out to dry in the sun.

Sentence 2: Along with the fish heads, the tails are also a delicacy.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: It was established following New Republic staffer Ruth Shalit's serial plagiarisms.

Sentence 2: Ruth Shalit had a history of plagiarism.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: less As can be seen, the mean daily profit of each quartile ranges from positive $248 to negative $110.

Sentence 2: Profits need to be raised greatly to avoid financial hardship.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell