Q: A relative clause is a word, clause, or phrase that modifies some element of the main clause. Relative clauses are introduced by relative pronouns. Common relative pronouns include who/whom, whoever/whomever, whose, that, and which. In general, they come in two types: non-restrictive and restrictive. Non-restrictive modifiers are relative clauses or phrases that add information to a sentence but aren't essential to the meaning of the sentence. If you removed a non-restrictive modifier from the sentence, it would still make sense (and the main subject of the sentence would still be in place). They are also sometimes called "interrupters." Here is an example of a non-restrictive modifier in a sentence: "George Washington, our first president, served two terms." While the information in the non-restrictive modifier is helpful, the main clause makes sense if it's removed: "George Washington served two terms." Here is another example of a non-restrictive modifier: "Fatima, who has been studying hard, will probably do well on today's exam." The presence of who (a relative pronoun) in a clause is often a sign that it's non-restrictive and should be set off by commas. In almost all cases, non-restrictive clauses or phrases will be set off on both sides by commas. This indicates to the reader that they're additional information, but not necessarily essential. If you can remove the clause without damaging the sense of your sentence, it is almost certainly a non-restrictive modifier. Make sure to set off the entire modifier with commas, using one at each end. A common comma error is to set off the beginning of the modifier with a comma, but not the end. In almost all cases, relative clauses or phrases beginning with which will be non-restrictive modifiers and should be set off with commas: "The car accident, which occurred at 3 PM, didn't damage my car too badly." Sometimes, prepositional phrases and other phrases interrupt the main sentence, serving as non-restrictive modifiers. If these interruptions are separate from the main subject and verb, separate the interruption phrase with commas to signal to the reader that this information is inessential. For example, here is an example of a prepositional phrase acting as an interrupter: "It is, in my opinion, an excellent book." This phrase isn't crucial to the meaning, and can be taken out without damage to the sentence. Here is another example: "This road, on the other hand, is well-paved and easy to drive." Direct address also falls into this category. For example, here is a sentence interrupted by a direct address to another person: "That's why I'm appointing you, Thomas, leader of the group." Restrictive modifiers are relative clauses or phrases that are crucial to the meaning of your sentence. They cannot be removed without damaging the sense of your sentence. Here is an example of a restrictive modifier in a sentence: "Drivers who exceed the speed limit are reckless." This clause is essential to the meaning of the sentence and cannot be removed. Here is another example of a restrictive modifier: "The song named "Roar" is popular; the song named "Latte Love" that I made up yesterday is not.'' While these modifiers do offer additional information, they cannot be removed without obliterating the sentence's meaning: "The song [??] is popular; the song [??] that I made up yesterday is not." Because they are essential to the meaning of your sentence, setting off these clauses or phrases with commas will interfere with the clarity of your sentence. In almost all cases, a clause beginning with the relative pronoun that will be restrictive and should not be set off with commas: "The car accident that I had yesterday will really raise my insurance bill."
A: Understand what a relative clause is. Understand how non-restrictive modifiers work. Use commas with non-restrictive modifiers. Use commas to offset expressions that interrupt the sentence. Understand how restrictive modifiers work. Avoid using commas with restrictive modifiers.

Article: Faux fur is made from a variety of materials, some of which are scratchy and itchy against your skin. Poor quality will make it easy to spot your fur as a fake, plus it'll ruin the experience for you. A good quality faux fur will feel soft and luxurious, much like a real fur. In fact, some faux furs are hard to detect because they are so similar to the real thing. Press your finger into the fur and run it along the surface of the fur. Watch to see how the fur reacts to being pushed against. A good quality faux fur will quickly return to it's plush state, while poor quality faux fur will stay flat and not bounce back. Read the label carefully to find out what your coat is made from. Many faux furs are made of acrylics, but they don't all have the same texture. Additionally, go online to check any words that you don't understand. Some manufacturers have been accused of using actual fur pieces mixed into their faux fur to add quality while keeping the price low. If you are buying faux fur for ethical reasons, then you will want to know if your faux fur contains real fur. Kanecaron and Tissavel are two acrylic fibers that work well for faux fur coats.
Question: What is a summary of what this article is about?
Feel the texture to see if it's soft. Mash down the fur to check the quality. Check the label.

Q: Using your phone will also help you ignore almost anyone. There are a few things you can do to ignore someone with your phone. First, you can just use the phone to look busy whenever you see that person. Talk to someone else on the phone, laughing wildly, or look engrossed in an intense text-message exchange with someone you actually want to talk to. Change your phone number so the person can't call or text you. Block that person's number from your phone so you can't receive messages from them. Set an alarm on your phone to ring when you know you're near that person, so you can pick it up and pretend to be talking to someone. Invest in some headphones, and wear them at all times when you're alone, even if you're not listening to music. When you see that person, blast your music to deafening volumes and bounce your head to the beat, so you look completely absorbed in your tunes, with absolutely no time to waste on the person you're trying to ignore. If you want to be really annoying, you can even close your eyes and sing along to the music, giving the person you're ignoring almost no chance to talk to you. Ignoring someone online is even easier than ignoring them in person because you don't have to physically avoid them. To ignore someone online, just make sure to avoid any of that person's emails, Facebook posts or messages, Twitter feeds, or any other attempts to contact you online. Block that person from any of your social networks. Make sure he has no way of reaching out to you online. Change your email address and other usernames if you have to. That person should have no way of contacting you online.
A:
Use your phone. Play music. Ignore someone online.