Domain: Object_Inference / recreation_and_instruments

turn: 1
modality: image
input: Please generate an object that looks very similar to a violin, but: 1. Unlike a violin, it does not have a chinrest; 2. Instead, it has an endpin that rests on the floor.
output: evaluation_points: 1. The object's overall silhouette is indeed easily confused with a violin.

2. The image clearly does NOT contain a chinrest.

3. The image clearly DOES contain an endpin resting on the floor.

turn: 2
modality: image
input: Based on the previous context, further distinguish this object through its physical properties: 1. It has a uniquely large and deep body contour; 2. It is typically made of spruce and maple wood.
output: evaluation_points: 1. Maintains the distinguishing features established in Turn 1: the object has an endpin resting on the floor and does not have a chinrest.

2. The object's contour and proportions are large and deep, matching the description.

3. The object's material rendering is correct, appearing to be made of wood like spruce and maple.

turn: 3
modality: image
input: Based on the previous context, add this object's specific scenario feature: This object is specifically used in an orchestral cello section, a scenario where a viola would be unusable.
output: evaluation_points: 1. Maintains all physical features from the previous turns: the object has an endpin resting on the floor and lacks a chinrest (Turn 1); it has a large and deep body contour and appears to be made of wood like spruce and maple (Turn 2).

2. The background or the object's state suggests an orchestral or cello section setting.

3. The overall visual effect clearly points to a cello, eliminating the possibility of it being a viola.

turn: 4
modality: text
input: Based on all the previous prompt steps and the final image you generated, please select which item you have generated (output the chosen option directly):
Options:
A. Viola
B. Cello
C. Double Bass
D. Violin
E. None of the above.
output: answer: B

turn: 5
modality: image
input: Based on the previous prompts and the image you generated, now modify this object into an electric cello. Please keep its appearance features (such as color, pattern) unchanged while updating the necessary components to match the characteristics of this variant.
output: evaluation_points: 1. The item's color and pattern remain largely consistent with the Turn 3 output image (the original cello).

2. The core features of the cello are retained: the large and deep body shape (as described in Turn 2), the presence of an endpin (as required in Turn 1), and the overall structure of a bowed string instrument.

3. New or modified key structural components that fit an electric cello are present (e.g., solid body, pickups, output jack, possibly a thinner body profile).

turn: 6
modality: text
input: Comparing the variant version you drew with the original item, what is the biggest physical structural change made to achieve the variant's function?
Options:
A. The shape of the scroll
B. The material of the strings
C. The replacement of the hollow wooden body with a solid body and the addition of electronic pickups
D. The length of the fingerboard
E. None of the above.
output: answer: C