Explanation:

Context:
In the given scenario, the lion is attacking the giraffe, and the question is about the giraffe's chances of escaping from the lion's attack.

Probability of Escape:
- When it is mentioned that the giraffe "might" escape, it indicates that there is a possibility of the giraffe managing to get away from the lion.
- The word "might" suggests uncertainty and implies that the outcome of the giraffe escaping is not guaranteed.

Factors affecting Escape:
- The giraffe's chances of escaping depend on various factors such as its speed, agility, environment, and the lion's proximity and hunting tactics.
- Giraffes are known for their speed and ability to run swiftly, which could increase their likelihood of escaping from a predator like a lion.

Even Chance:
- The statement "It has an even chance of doing so" implies that the giraffe has an equal probability of escaping as it does of not escaping.
- This suggests that the giraffe's chances of escaping are uncertain and could go either way.

Conclusion:
In conclusion, the word "might" indicates the uncertainty of the giraffe's escape, while the phrase "even chance" suggests that the probability of escape is equal to the probability of not escaping. Therefore, the giraffe has a fair but uncertain chance of escaping from the lion's attack.