Comments and suggested changes

Good work. Your API implementation looks great; I can't find any problems. There are a few issues with your RDFa, mainly having to do with confusion about how to properly use the BBC Food Ontology:

* A [`bbc:Collection`](http://www.bbc.co.uk/ontologies/fo#terms_Collection) is a group of recipes, not a group of menus. I would just use an [`rdf:List`](http://www.w3.org/TR/rdf-schema/#ch_list) here. See sils-webinfo/WIO-restaurant@f40ce17
* You only use `bbc:side_dish` to relate menus to the dishes they contain; instead you should store your information in your `data.json` about the role the dish plays in the menu and set the relationship properly, e.g. `bcc:starter`, `bbc:main_course`, etc.
* Ingredients are not directly related to dishes. The value of the dish's `bbc:ingredients` property is a [`bbc:IngredientList`](http://www.bbc.co.uk/ontologies/fo#terms_IngredientList), which contains the ingredients in their proper sequence. If you don't do this the order of the ingredients is lost in the RDF representation. See sils-webinfo/WIO-restaurant@8faa1b7
* Finally, a [`bbc:Ingredient`](http://www.bbc.co.uk/ontologies/fo#terms_Ingredient) is a combination of a food item and a quantity. The value of the `bbc:food` property linking the ingredient and the food must be a [`bbc:Food`](http://www.bbc.co.uk/ontologies/fo#terms_Food] resource, not a string literal. See sils-webinfo/WIO-restaurant@286098d