In one sentence, describe what the following article is about: Exercise is an important part of losing weight, burning calories, and maintaining health. Moderate exercise means that you are lightly sweating, breathing a bit harder (but are not out of breath), and can still talk while exercising. Moderate aerobic activity may include dancing, cycling, and brisk walking. Vigorous cardiovascular training burns calories faster, and includes jogging, circuit training, aerobic classes, resistance training, and stair climbing. One way to engage in fitness in a new way is to try a new activity. This can be as easy as trying a new class at your local gym or trying something active outdoors. You want to make fitness fun, and there are many ways to add enjoyment to physical activity. Hiking is a great way to burn calories and be active while enjoying some natural beauty. If you don't have hiking trails near you, consider going to a local park or somewhere you can immerse yourself in nature while you move your body. Pick up biking. Find some local bike paths and enjoy time outside. Save gas and bike to your errands, like going to the grocery store. Dancing is a great way to burn calories and learn a new skill. Many different forms of dance exist, such as ballroom, salsa, bachata, hip hop, ballet and freestyle. Check out dance classes in your area and have some fun while you burn calories.
Summary: Choose your cardiovascular exercise. Try a new activity.

Set match heads aside and throw away or otherwise use the rest. Cap the bottle and swirl. Once unleashed, the smell will send shivers down spines and nightmares into heads. This stink bomb forms ammonium sulfide, (NH4)2S.
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One-sentence summary -- Cut off the heads of a book of matches using a scissors. Place the match heads in a clean, unused bottle with a cap. Pour about two or three tablespoons of ammonia into the bottle. Wait three to four days before opening the bottle.

Q: If the author or authors are provided, the last names must be included in the citation. One way to cite the author is to introduce him or her in the sentence prior to the quotation or paraphrase. According to Jones, this premise is false (25). A study by Smith, Doe and Rowell indicates that this is only a misconception (98-100). If you do not introduce the authors of the work in the sentence itself, you must state the last name or names in parentheses. For works with multiple authors, separate the final two authors with the word "and." This premise is false (Jones, 25). Even though it was previously accepted as fact, this is only a misconception (Smith, Doe, and Rowell, 98-100). List the page number or numbers the cited information can be found on in parentheses. If using a page range, separate the page numbers with a hyphen. If using page numbers that are not part of a range, separate the numbers with a comma. Do not separate the author's name and the page number with a comma. Erikson claims otherwise (27). Some experts claim otherwise (Erikson 27). Research shows that this long-held belief is "nothing more than an old wives' tale, at best" (Johnson and Smith 28-31). New information clarifies this situation (Doe 18, 23). If you need to cite two works written by two different authors with the same last name, indicate the two different authors by including a first initial as well as the last name. Current lingual theory supports this concept (L. Hoffman 87), but some linguists disagree (M. Hoffman 14). L. Hoffman supports this concept (87), but M. Hoffman disagrees (14). If the author of a source is unavailable, use a shortened form of the title, instead. Put articles and short works in quotation marks and books or other long works in italics. Provide a page number as usual. Recent research on the brain supports these claims ("New News" 4-5). The study of psychology continues to expand in this area (Psychological Discoveries 58). If you are citing information from multiple works written by the same author, include the title of the work in parentheses, followed by the page number. Use quotation marks for short works and italics for long works. You can introduce the name of the author in the sentence or you can specify the author in parentheses before listing the title, separating the author and the title with a comma. Doe holds to this belief ("Theories on Literature" 92-4), but he has been known to stray from it on occasion (Analysis of Popular Poems 100). This theory is "too new to hold much ground" (Analysis of Popular Poems 100), but it does show considerable promise (Doe, "Theories on Literature" 92-4). If borrowed information comes from more than one source, cite each source in parentheses as usual and separate the individual sources with semicolons. Many wonder if the facts have been exaggerated (Doe and Simmons 204; Williams 17-21). Non-print sources do not have standard page numbers. Instead of providing a page number or paragraph number, indicate the source by specifying the author's name and the name of the article or website. Both the author and website name can be included either in parentheses or in the sentence. You should have at least one of the two pieces of information in parentheses, but you can also include both pieces of information in parentheses, separated with a comma. Williams firmly states his support for this new artistic movement ("Film Trends"). This new artistic movement has professional support (Williams, "Film Trends").
A: Introduce the author in the sentence. Alternatively, name the author in parentheses. Specify the page range on which the information can be found. Provide a first initial for different authors that share the same last name. Use the title if no author is available. Specify the title when using more than one work by the same author. Separate multiple citations with a semicolon. Name the author and website if using an Internet source.

Problem: Article: If it helps, you can erase the lines you drew when tracing your photo. Then use a pair of scissors or a blade to cut along the inside rectangle (which you drew in the previous step) and the outside border of your frame. Now you have the foundation for the front of your picture frame! It can be tricky to cut the inside corners, but it's ok if they don't look flawless. You'll be covering them up with fabric anyway! This will serve as the back panel for your frame. Trace the frame, or mark out its dimensions onto another piece of cardboard, and cut it out with scissors. You can use the same cardboard, but a lighter-weight version would also be fine if you've used corrugated cardboard for the front. Or, if you've used lightweight cardboard for the front, you can use corrugated cardboard for the back to provide some support. With the wrong side of the fabric facing up, place the front frame piece down onto the fabric. Center it as best you can. If you want your frame to stand up, use a leftover piece of stiff cardboard as the frame stand. Cut a rectangle the same height as your frame, and fold down the top by 14 to 12in (0.64 to 1.27cm). Then apply glue to this folded piece and stick it onto the back of the frame. Allow the glue to dry completely before standing up your frame.
Summary:
Cut along the innermost and outermost lines. Cut a second piece of cardboard the same size as the open frame. Place the open frame onto your piece of fabric. Glue a folded piece of cardboard to the back panel as a frame stand.