If there are multiple content items associated with one og:title, how would you create it?
<meta property="og:title" content="cat, dog, mouse" />
vs
<meta property="og: title" content="cat" />
<meta property="og: title" content="dog" />
<meta property="og: title" content="mouse" />
If you do multiple meta statements on the same property, the browser will take the last statement (this depends on your browser though).
If you want multiple contents for your meta tags, seperate them using ,
.
But, however, you are selecting the meta OpenGraph title, and a title can only have 1 value.
Other OG tags CAN have multiple contents, but a title can't.