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.
Q: Sentence 1: Differences in heating is the primary cause of air movement in the troposphere. Sentence 2: Radioactive heating in the mantle may be a primary cause for block movement, but other forces are probably involved.
A:
neutral