ABC Websites

Create flawless web experiences
Web Stories

Snackable Stories for everyone
ABC Ads

Super fast ads on the web
ABC Email

Next gen email
How ABC works

How ABC works
JSON for Linking Data

JSON for Linking Data
RDF in Fifty Words or Less

Structured data
Vision & Story

Vision & Story
Use cases

JSON for Linking Data

Get Started

Get Started
Guides & Tutorials

Get started with ABC
Courses

Learn Structured Data
Templates

Ready to use
Tools

Begin building
Pizza Tutorial

Learn knowledge modeling
Control HTML

Control HTML

Blog

Current events
Community

Snackable Stories for everyone
Spectre

Super fast ads on the web
Roadmap

Next gen email
The latest news

Begin building

Guides & Tutorials

Get started
Contribute documentation

Breaking the status quo
Success Stories

Ready to use

EN

About
Documentation
Lunch
- Blog
- Community
- Spectre
- Roadmap
- The latest news
Presentation

Something went wrong while trying to load more search results.
We apologize for the inconvenience caused.
Please try again later.

;(

Something went wrong…

…while trying to load the search results.
We apologize for the inconvenience caused.
Please try again later.

¯\_(ツ)_/¯

No results found.

We could not find any results matching your search query.

Toggle Sidebar Toggle Sidebar

Documentation Pizza Tutorial

Describing and Defining Classes

Existential Restrictions

Section 4.10.2

Written by @mdebellis
with contributions from @gigster99 and @ldodds
Translated by @jaygray0919

Learn OWL and Description Logic
Chapter 1
Chapter 2
- Requirements and Protégé User Interface
Chapter 3
Chapter 4
- Building an OWL Ontology
- Named Classes
  - Preface
  - Exercise 4
- Using a Reasoner
  - Preface
  - Exercise 5
- Disjoint Classes
  - Preface
  - Exercise 6
- Using Create Class Hierarchy
  - Preface
  - Exercise 7
- Create a PizzaTopping Hierarchy
  - Preface
  - Exercise 8
- OWL Properties
  - Preface
  - Exercise 9
- Inverse Properties
  - Preface
  - Exercise 10
- OWL Object Property Characteristics
- OWL Property Domains and Ranges
- Describing and Defining Classes
- Primitive and Defined Classes (Necessary and Sufficient Axioms)
- Universal Restrictions
  - Preface
  - Exercise 22
- Automated Classification and Open World Reasoning
  - Preface
  - Exercise 23
- Defining an Enumerated Class
  - Preface
  - Exercise 24
- Adding Spiciness as a Property
  - Preface
  - Exercise 25
- Cardinality Restrictions
  - Preface
  - Exercise 26
Chapter 5
Chapter 6
- Adding Order to Enumerated Class
Chapter 7
- Names - IRIs, Labels, and Namespaces
Chapter 8
- Larger Ontology with Individuals
- Get Familiar with the Larger Ontology
Chapter 9
Chapter 10
Chapter 11

How does advertising work on Accelerated Mobile Pages?

A goal of the Accelerated Mobile Pages Project is to ensure effective ad monetization on the mobile web while embracing a user-centric approach. There is currently support for a comprehensive range of ad formats, ad networks and technologies in Accelerated Mobile Pages. As part of that, those involved with the project are also engaged in crafting Sustainable Ad Practices to ensure that ads in AMP files are fast, safe, compelling and effective for users.

Are publishers able to sell their own ad inventory?

Yes, as with their existing websites, publishers control their ad inventory and how they sell it.

How do subscriptions and paywalls work with Accelerated Mobile Pages?

It is a core objective of the Accelerated Mobile Pages project to support subscriptions and paywalls. AMP currently supports a flexible access framework where publishers can control the document viewing experience for subscribers, metered users and anonymous users.

How are analytics being handled in this AMP format?

Ensuring publishers are able to get robust analytics insight is a core design goal for the project. AMP currently supports the collection of analytics information using features like amp-analytics, which can integrate with 3rd party systems without compromising the AMP file speed or size. Several analytics providers are participating in the project.

Do publishers receive credit for the traffic from a measurement perspective?

Yes, an AMP file is the same as the rest of your site – this space is the publisher’s canvas.

How do I become a part of this project?

We welcome interested individuals and companies who want to get involved to get in touch via GitHub, so that we can add you to a distribution list and keep you posted on any new information.