Claiming potential keywords from other published keyword articles on purplepedia.com is a great idea for creating content. Just read some of the keyword articles published on the purplepedia.com website and see whether keywords can be extracted.
As an example, if keywords around London were required, then viewing keyword articles already published about London could lead to possible ideas of new keywords.
A Keyword Article about London, with a sentence like 'London's many attractions include the Tower of London, Madame Tussauds, the London Eye...'. Potentially has the following keywords:
Sometimes a sentence may not have keywords side by side and may require keywords from one part of a sentence to be joined with keywords from another part of the sentence.
Consider the following sentence for the keyword 'Eczema':
'Treatments for eczema include steroid creams, moisturisers, specialist clothing...'
In the above example, the following keywords could be gleaned:
Once the keywords have been chosen, it's advisable to reserve the keywords on the Membership platform. So other members don't end up reserving them!