Accessing Array Entities
 
 Recall that array entities can have multiple indices, and so they cannot be represented as plain arrays and are not accessed with the square brackets [ ] notation.  
 
 Instead, you need to call the array entity name as a function, passing the indices as parameters. Each array element is returned as an object with 
 value and 
 label properties. 
 
                <vdl-section>
    <p vdl-text="='Investment in highways: ' 
                   + scenario.entities.frac('highways').value"></p>
</vdl-section> 
 
