In this task, you are given two statements. The task is to output whether a given textual premise, i.e. Statement 2, entails or implies a given scientific fact, i.e. Statement 1. The output should be 'entails' if Statement 2 supports Statement 1 and should be 'neutral' otherwise.

Sentence 1: Reptiles typically reproduce sexually. Sentence 2: Among vertebrates, however, it occurs only in reptiles, and all such unisexual species originate from hybridisation between two sexually reproducing species.
neutral

Sentence 1: Test wells are drilled to monitor groundwater pollution. Sentence 2: It is therefore obvious that a groundwater monitoring approach based on vertical monitoring wells is not reliable for detecting landfill liner failure before widespread groundwater pollution occurs.
neutral

Sentence 1: Expansion of a gas into a vacuum is irreversible because the external pressure is measurably less than the internal pressure of the gas, and no states of equilibrium exist. Sentence 2: Vapor pressure Total gas pressure at equilibrium due to a specific compound present as liquid and gas.
neutral