Jewellery (British English) or jewelry (American English) consists of small decorative items worn for personal adornment, such as brooches, rings, necklaces, earrings, pendants and bracelets. Jewellery may be attached to the body or the clothes, and the term is restricted to durable ornaments, excluding flowers for example. For many centuries metal, often combined with gemstones, has been the normal material for jewellery, but other materials such as shells and other plant materials may be used. It is one of the oldest type of archaeological artefact -- with 100,000-year-old beads made from Nassarius shells thought to be the oldest known jewellery. The basic forms of jewellery vary between cultures but are often extremely long-lived; in European cultures the most common forms of jewellery listed above have persisted since ancient times, while other forms such as adornments for the nose or ankle, important in other cultures, are much less common.

Answer this question based on the passage: when was the first piece of jewelry made? Let's do a good job answering this.
--
Stream of consciousness: To answer the above question, the relevant sentence is: It is one of the oldest type of archaeological artefact -- with 100,000-year-old beads made from Nassarius shells thought to be the oldest known jewellery.... The answer is 100,000 - year - old.


Pepsin is an endopeptidase that breaks down proteins into smaller peptides (that is, a protease). It is produced in the stomach and is one of the main digestive enzymes in the digestive systems of humans and many other animals, where it helps digest the proteins in food. Pepsin has a three dimensional structure, of which one or more polypeptide chains twist and fold, bringing together a small number of amino acids to form the active site, or the location on the enzyme where the substrate binds and the reaction takes place. Pepsin is an aspartic protease, using a catalytic aspartate in its active site.

Answer this question: where is pepsin secreted in the digestive system? Let's do a good job answering this.
--
Stream of consciousness: To answer the above question, the relevant sentence is: It is produced in the stomach and is one of the main digestive enzymes in the digestive systems of humans and many other animals, where it helps digest the proteins in food.... The answer is the stomach.


The Master is a fictional character on the action-horror / fantasy television series Buffy the Vampire Slayer (1997 -- 2003). He is a centuries-old vampire portrayed by Mark Metcalf, determined to open the portal to hell below Sunnydale High School in the fictional town of Sunnydale where the main character Buffy Summers lives. The premise of the series is that Buffy (Sarah Michelle Gellar) is a Slayer, a teenage girl endowed with superhuman strength and other powers which she uses to kill vampires and other evil beings. Each season of the series Buffy and the small group of family and friends who work with her, nicknamed the Scooby Gang, must defeat an evil force referred to as the Big Bad; the villain is usually trying to bring on an apocalypse. The Master is the first season's Big Bad.

Who plays the master in buffy season 1? Let's do a good job answering this.
--

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Stream of consciousness: The relevant information to answer the above question is: He is a centuries-old vampire portrayed by Mark Metcalf, determined to open the portal to hell below Sunnydale High School in the fictional town of Sunnydale where the main character Buffy Summers lives.... The answer is Mark Metcalf.