◁think▷I need to write a 50–80 word English description of the composite LF-NMR image of apple #537, 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'. I should also not output in JSON, Chinese, or any extra explanations, just the plain descriptive text.

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

The image shows four views of what appears to be cross-sectional slices of an apple. The apple has a somewhat irregular shape with a visible core. The texture appears granular, which might relate to the moisture distribution and tissue structure. The signal intensity varies across the slices, with some areas appearing lighter and others darker. There seem to be some patches or irregularities in the tissue structure.

I need to describe:
1. Internal moisture distribution - how water is distributed within the apple
2. Tissue structure - the arrangement and organization of the apple's tissues
3. Signal intensity - how the imaging technique (LF-NMR) is showing different intensities
4. Patch morphology - the shape, size, and appearance of any patches or irregularities

I'll craft a descriptive paragraph that covers these aspects without using prohibited terms. I'll focus on observable features rather than interpreting them as healthy/diseased, etc.◁/think▷The composite LF-NMR image of apple #537 reveals distinct patterns of internal moisture distribution, with varying signal intensities suggesting regions of differing hydration levels. Tissue structure appears heterogeneous, featuring irregular patches with granular textures. The core region shows a pronounced depression surrounded by denser tissue zones. Signal variations correlate spatially with these structural anomalies, creating a mosaic of light and dark areas across the cross-sectional views. The overall morphology exhibits asymmetrical patterns, with one hemisphere displaying more uniform signal characteristics than the other.