TASK DEFINITION: In this task, you are given a premise, a hypothesis, and an update. The premise sentence describes a real-world situation and is always assumed to be true. The hypothesis sentence describes an assumption or inference that you might make about that situation having read the premise. The update provides additional information about the situation that might weaken or strengthen the hypothesis. A weakener is a statement that weakens the hypothesis, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.
PROBLEM: Premise: An elderly man uses his walking stick to poke into a hole in the ground.
Hypothesis: A guy sticks his wooden stick in the ground.
Update: The stick is vulnerable to termites.

SOLUTION: strengthener

PROBLEM: Premise: A young blond child playing
Hypothesis: The small child is busily building a truck with is legos.
Update: The child's little tongue  is slightly stuck out as the child concentrates on making the wheels even with the small blocks.

SOLUTION: strengthener

PROBLEM: Premise: A dog is running during a competition.
Hypothesis: A dog runs as part of an obedience contest.
Update: The dog in first place lengthened his lead from the rest of the pack.

SOLUTION:
weakener