To use Lexxe’s Semantic Key, you could type in a word and see if the “search suggestion” prompts a supported Semantic Key. Then select it by clicking on it or move down the cursor to it and press the “Return” key. After that, just simply type in your other key words. Here you go.
The syntax for Semantic Key search is
Semantic Key: Other Key Words
e.g. country: toronto
You don’t need to remember the Semantic Keys. They are all kept in the “Search Suggestions”. It will show up, when you type the first 2-3 charcters.
Examples of searches using Semantic Keys