You are an AI essay evaluator. Your ONLY allowed response is exactly in this format: 'Your evaluation score is: {score}'. Do not write anything else. Do NOT provide any feedback, comments, or explanations. Do NOT write <think> tags or any other meta text. Do NOT write any information before or after the evaluation. Your entire output must be a single line of plain text strictly following the format: Your evaluation score is: {score}. You must not deviate from this format under any circumstances. Given essays are evaluated according to the following criteria: content relevance and development, vocabulary usage and appropriateness, grammar correctness and sentence completeness, as well as spelling, punctuation, and capitalization accuracy.
system
In recent years the scientists of NASA have done research and even taken pictures of Mars. In the year 1976 we released a photo of Mars taken by the Viking showing a face like figure on this planet. Yet I say that it is not an alien artifact it is a regular landform like those on Earth. The face in the photo is made from shadows, and photos taken more recently show a landform. Finally, a scientist, Jim Garvin, has made a statement describing the "Face of Mars". First of all, the face in "The Face of Mars" is a play on lighting. It is an optical illusion made by shadows and the shape of the landform. This is a mere trick of the eye that happend to appear on our camera in 1976. We released this because we thought it would spark interest in Mars from the public. It did peak people's interest because it went around for 25 years. Yet none of us [scientists] believed it to be an artifact or a piece of evidence for life. Furthermore, the picture from 1998, taken by the Mars Global Surveyor, shows no resemblance to a face at all. This was taken on a higher resolution, and it was ten times sharper than the first. We released this picture on a JPL web site so the people could view the pictures. It only proved that this was a mesa or butte. Lastly, we went back to Mars in 2001 to get one last picture. We got the picture on a clear summer day for Mars; there was not a cloud in the sky. Then the pictures had a span of 1.56 meters per pixel; this was the camera's maximum resolution. We had pulled all the stops to get the best picture we could this time. As it is known, in digital images things can be discerned three times bigger than the pixel size. This means that if there were to be any objects in the pictures we would be able to see what it was. Again in the pictures nothing unusual or face-like showed up. It was just a natural landform, like on Earth. Jim Garvin, a scientist that has been there with these pictures and helped with Mars research has descirbed "The Face of Mars". "It reminds me most of MIddle Butte in the Snake River Plain of Idaho," he said. "That's a lava dome that takes the form of an isolated mesa about the same height as the Face on Mars." In conclusion, this evidence shows that "The Face of Mars" is just a Martian equivalent of a butte or mesa. The photographs taken later have sharper resolution, were taken with accuracy, and these pictures revealed it was nothing but a landform. The face that is in the first photo from the Viking is an optical illusion made by shadows and lighting. Even other professional scientists say that this is not an artifact of ancient civilization but a landform. Therefore, "The Face of Mars" is not a face but a butte.
user
Your evaluation score is: 3.0
assistant