Question: What is the birth date of the person who gave Roominate an investment along with Mark Cuban during the sixth season of "Shark Tank"? 

Context paragraphs:
Shark Tank (Australian TV series): Shark Tank is an Australian reality competition television series that premiered 8 February 2015, on Network Ten.  Based on the international "Dragons' Den" and "Shark Tank" format, it has aspiring entrepreneur-contestants make business presentations to a panel of "shark" investors.

Rugged Maniac: Rugged Maniac is an annual obstacle course race, otherwise known as a mud run, hosted in multiple cities across the United States.  Participants run a 5 kilometer (3.1 mile) course with obstacles ranging from muddy water slides, crawling through tunnels, jumping over logs set on fire, and scaling large, curved walls.  Billionaire entrepreneur Mark Cuban is an investment partner with Rugged Maniac, after their appearance on season 5 of the hit ABC reality show Shark Tank.

Slyde Handboards: Slyde Handboards is a bodysurfing and water sports company.  It was co-founded in 2010 by Steve Watts and Russell Ellers, and they were later joined by Angela Watts.  Slyde secured a round of funding on the seventh season of "Shark Tank" from Ashton Kutcher and Mark Cuban, who invested $200,000 in exchange for 22% equity of the company.

Mark Cuban: Mark Cuban (born July 31, 1958) is an American businessman, investor, author, television personality, and philanthropist.  He is the owner of the NBA's Dallas Mavericks, co-owner of 2929 Entertainment and chairman of the AXS TV.  He is also one of the main "shark" investors on the ABC reality television series, "Shark Tank".  In 2011, Cuban wrote an e-book, "How to Win at the Sport of Business", in which he chronicles his experiences in business and sports.

Roominate: Roominate is a construction set introduced by Maykah Inc., a company founded by Alice Brooks and Bettina Chen, in 2012.  The product, marketed at girls aged 6–10, consists of modular plastic building pieces that can interlock to create models and includes circuits that can be wired.  Originally funded through Kickstarter, the company received an investment from Mark Cuban and Lori Greiner during the sixth season of "Shark Tank".

I Want to Draw a Cat For You: I Want to Draw a Cat For You was an online business owned by Steve Gadlin which charged customers $9.95 in exchange for custom drawings of cats that Gadlin would draw to the customer's specifications.  Gadlin first came up with the idea as a joke, with the goal of seeing if he could construct a successful business using only a widget.  The business started in 2011, and originally, its website consisted of only an embedded YouTube video and a PayPal button.  The business became well-known after Gadlin appeared on Shark Tank to promote it, and, on the show, persuaded Mark Cuban to invest $25,000 in the idea.  Gadlin stopped accepting orders for the company in January 2015, saying that “The project has run its course.”  However, as of November 2015, his website still exists, and he is accepting orders for custom drawings for $29.99.

PiperWai: PiperWai is an American deodorant brand.  It was featured on "Shark Tank" in December 2015 and received an offer from Barbara Corcoran, which has been considered one of her most notable deals to date.  The product experienced the ""Shark Tank" effect" and sold out within five minutes of airing, with more than $1 million in sales over the next month.  PiperWai was co-founded by Sarah Ribner and Jess Edelstein in March 2014.

Shark Tank: Shark Tank is an American reality television series that premiered on August 9, 2009, on ABC.  The show is a franchise of the international format "Dragons' Den", which originated in Japan in 2001.  "Shark Tank" shows aspiring entrepreneur-contestants as they make business presentations to a panel of "shark" investors, who then choose whether or not to invest.

Simple Sugars: Simple Sugars is a Pittsburgh-based cosmetics company run by entrepreneur Lani Lazzari.  In 2013, Lani Lazzari appeared in Season 4 of the American reality television series "Shark Tank" where the business received a $100,000 investment from Dallas Mavericks owner Mark Cuban for a 33 percent stake.  A year later, Lazzari appeared again on "Shark Tank".

Lori Greiner: Lori Greiner (born December 9, 1969) is an American inventor, entrepreneur, and television personality.  She is best known as a cast member of the reality TV show "Shark Tank" and has been called "The Queen of QVC".  She has also appeared on its spin-off, "Beyond the Tank".  Since 1998, she has had a program on QVC called "Clever & Unique Creations Show".  She is also president and founder of the Chicago company For Your Ease Only, Inc., which she established in 1996 and which does product development and marketing.  She has helped launch more than 400 products and holds 120 U.S. and foreign patents.

Supporting paragraphs: Roominate Lori Greiner
Answer: December 9, 1969