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My iPhone 6's screen size is 6 inches and red color.

Vocabulary are the following:

iPhone 6
screen
size
6 inches
color
red

Questions: 1) How to link 'iPhone 6' node with the 'screen' node? 2) 'screen' has two properties: 'size' & color

Possible relationships: 1) [iPhone6, screen, ?] what's the object here?

2) 

[screen, color, red]
[screen, size, 6 inches]

Is this appropriate to express as Compound Value Type in KB like Freebase? Reading the Freebase's documentation, it seems CVT is intended to express complex value types with a time dimension, such as an event or a population over time.

user697911
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    n-ary relations in RDF are modeled via blank nodes or you justadd an intermediate node instead. a typical solution would be `:iPhone6 :screen [:size "6"^^unit:inches ; :color :red ] .` – UninformedUser Aug 09 '18 at 05:57
  • Is 'screen' a relationship or node name in your modeling? In Freebase, there is a Compound Value Type. – user697911 Aug 09 '18 at 17:47
  • @user697911, both :-). In RDF, properties (but not their occurences) are first-class citizens. They might have their own properties etc. They are regular URIs. – Stanislav Kralin Aug 10 '18 at 05:40

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