Sentence 1: So their ability to move stock prices--which, in theory, encourage efficient capital allocation--is troubling.

Sentence 2: Their ability to change stock prices is troubling.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: They include algal blooms that are potentially hazardous to human health, low dissolved oxygen concentrations, declines in the health of fish and shellfish populations, loss of seagrass beds and coral reefs, and ecological changes in food webs.

Sentence 2: Those algal blooms represent a potential threat to human well-being.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: However, developing the information-sharing and coordination capabilities that could assist in effectively addressing computer-based threats and actual incidents has proven to be challenging as organizations grapple with ways to ensure that useful and complete data are collected; appropriately analyzed; protected from inappropriate disclosure; and efficiently and effectively disseminated, often in the form of warnings.

Sentence 2: It is not challenging.
Is this second sentence entailed by the first?

Answer:
no