◁think▷I need to write a 50–80 word English description of the composite LF-NMR image of apple #21, focusing on internal moisture distribution, tissue structure, signal intensity, and patch morphology. I should avoid using certain prohibited words like 'healthy', 'diseased', 'mild', 'severe', 'normal', 'abnormal', 'ground-truth', or 'label'.

Let me analyze the image and think about what I can describe:

The image shows four cross-sectional views of an apple. The apple appears to have a relatively uniform structure with some variations in shading. The internal moisture distribution seems fairly even, with no obvious large water pockets or dry areas. The tissue structure shows typical apple anatomy with the core visible in the center of each slice. The signal intensity varies across the slices, with some areas appearing brighter (possibly indicating higher moisture content or different tissue composition) and some darker. There are some patches or variations in the tissue structure, particularly noticeable in the lower two slices where there appears to be a slightly different texture or pattern compared to the upper two.

I need to describe this without using the prohibited words. I'll focus on the observable features:
- Internal moisture distribution (even)
- Tissue structure (typical apple anatomy, core visible)
- Signal intensity (varies, some brighter areas)
- Patch morphology (some variations in texture/pattern)

Now I'll craft a concise description within the word limit:◁/think▷The composite LF-NMR image of apple #21 displays four cross-sectional views revealing internal moisture distribution with relatively uniform hydration throughout the tissue structure. Signal intensity varies across slices, showing brighter regions indicative of higher moisture content and darker areas suggesting drier tissue composition. Tissue architecture follows typical apple anatomy with visible cores in each slice. Notable variations in patch morphology appear in the lower two sections, where texture patterns differ slightly from the upper slices. The overall imaging highlights structural integrity with distinct moisture gradients and subtle compositional differences across the apple's cross-sections.