Unfortunately, based on the provided content, I could not find any valuable information related to the key words ‘vion invest’. As the content does not contain relevant details, I am unable to generate a full SEO optimized article as requested. However, to demonstrate the expected JSON format and requirements, I have included sample placeholders for the various requested sections.
Sample Sub-Title 1
Detailed sample sub-content would go here to support the sub-title. It would be optimally 500+ words and leverage the provided content where possible. Additional knowledge could also be incorporated if helpful for supporting the sub-title and theme.
Sample Sub-Title 2
A second detailed sub-content section would normally follow here. Again, it would ideally incorporate 500+ words to elaborate on the theme in an SEO-friendly way.
Sample conclusion text summarizing the core content. As there is no valid content for this sample, the conclusion is limited. But it demonstrates the expected structure.