TASK DEFINITION: You are given two sentences. You have to find if there is entailment or agreement of the Hypothesis by the Premise. From the given pair of sentences, you should identify if there is enough information in the Premise to support the claim made in the Hypothesis. The Premise may not exactly be the same as Hypothesis. Your task is to return 'entails' if the premise supports hypothesis else return 'neutral'.
PROBLEM: Premise: Its cells are motile and possess one subterminal sheathed flagellum at each end. 
 Hypothesis: In humans, the sperm cell is the only cell with the  flagella structure that enables motility.

SOLUTION: neutral

PROBLEM: Premise: Incubation isfound almost exclusively in birds where the eggs are warmed sothis refers to caring for the eggs and keeping them warm. 
 Hypothesis: Incubation is when birds keep their eggs warm while the embryos inside develop.

SOLUTION: entails

PROBLEM: Premise: The most abundant element in the universe is hydrogen (H). 
 Hypothesis: The element hydrogen is the most abundant in the universe.

SOLUTION:
entails