premise: A man is sawing some objects and there are a lot of sparks. hypothesis: A man is gathering firewood by sawing them.
neutral: A person can saw many things, the word 'objects' does not imply that it is wood being sawed; further, if it were wood, it could be for a project, it could be because he's gathering firewood, it could be for a job - the purpose of sawing cannot be determined.