DALL-E: Content policy violation error

[patent sinew]

I found a prompt that violates content policy while being completely harmless:

Steps to reproduce:

1. Go to https://labs.openai.com
2. Type in: "The map legible to make out the entrance."

Expected result:
Generated images

Actual result:
Error message "It looks like this request may not follow our content policy."

I also went to GPT4 and asked it to explain why this prompt violates policy. It said that there is no violation.