Question: What ingredient can be found in both Cosmopolitan and Mai Tai?

Context paragraphs:
Entertainment (song): "Entertainment" is a song by French band Phoenix from their fifth album "Bankrupt! ".  It is the lead single from the album and premiered on 18 February 2013 with airplay on BBC Radio 1's Zane Lowe show.  Following the premiere, the single was sent to alternative radio, where it impacted in the United States during the week of 26 February.  The cover for the single, released on 19 February 2013, features the image of a Mai Tai against a gray background.  "Entertainment" features a staccato guitar line and synthetic production.  The official remix of the track features vocals from British R&B group Mutya Keisha Siobhan and re-worked production from Dev Hynes.

Mai Tai Sing: Mai Tai Sing is a former actress and a business woman.  Her acting credits include the TV series "Hong Kong", "Forbidden", "Strange Portrait" and "The New Adventures of China Smith".

Mai Tai: The Mai Tai is an alcoholic cocktail based on rum, Curaçao liqueur, orgeat syrup, and lime juice, associated with Polynesian-style settings.

Tiki bar: A tiki bar is an exotic-themed drinking establishment that serves elaborate cocktails, especially rum-based mixed drinks such as the mai tai and zombie cocktail.  Tiki bars are aesthetically defined by their tiki culture décor which is based upon a romanticized conception of tropical cultures, most commonly Polynesian.

Strange Portrait: Strange Portrait was a film set in Hong Kong.  It was directed by Jeffrey Stone and starred Jeffrey Hunter, Barbara Lee, Mai Tai Sing and Tina Hutchence.  Its associate producer was Terry Bourke.  In 1966 Stone and his wife went searching for a distributor, hoping to enter it into the Asian Film Festival.  The film never saw a release and there is some mystery about what happened.

Khamti people: The Tai Khamti (Thai: ชาวไทคำตี่ , "Chao Tai Kam Dtee") (Burmese: ခန္တီးရှမ်းလူမျိုး , Hkamti Shan) (Shan language: တႆး ၶမ်းတီႈ [tai˥˩] ) (Khamti : တဲး ၵံးတီႈ) or simply Khamti as they are also known, are a sub-group of the Tai peoples found in the Sagaing Division, Hkamti District in northwestern Burma as well as Namsai district and Changlang district of Arunachal Pradesh in India.  Smaller numbers can be found in the Lakhimpur district of Assam and possibly in some parts of China.  According to the census of India (2011) the Khamtis have a population of 140,31, out of which 12,925 live in Arunachal Pradesh and 1,106 in Assam.  However in Myanmar their total population is estimated at 200,000 people.  The tribe's name is also spelled Khampti by the Assamese.

Cosmopolitan (cocktail): A cosmopolitan, or informally a cosmo, is a cocktail made with vodka, triple sec, cranberry juice, and freshly squeezed or sweetened lime juice.

Orgeat syrup: Orgeat syrup is a sweet syrup made from almonds, sugar, and rose water or orange flower water.  It was, however, originally made with a barley-almond blend.  It has a pronounced almond taste and is used to flavor many cocktails, perhaps the most famous of which is the Mai Tai.

Trader Vic's: Trader Vic's is a restaurant chain headquartered in Emeryville, California, United States.  Victor Jules Bergeron, Jr. (December 10, 1902, San Francisco – October 11, 1984, Hillsborough, California) founded a chain of Polynesian-themed restaurants that bore his nickname, "Trader Vic".  He was one of two people who claimed to have invented the Mai Tai.  The other was his amicable competitor for many years, Don the Beachcomber.

Mai Tai (band): Mai Tai, now formed with Jetty Weels, Caroline de Windt and Maureen Fernandes, is a Dutch group (named after a tropical cocktail) that formed in 1983, by the Dutch record producers Eric van Tijn and Jochem Fluitsma.  With three former backing vocalists Jetty Weels, Mildred Douglas and Caroline de Windt, they created a Dutch soul, disco and pop act.

Supporting paragraphs: Cosmopolitan (cocktail) Mai Tai
Answer: lime juice