In this task, you are given Wikipedia articles on a range of topics, we ask you to write a question based on the content of the articles that can be answered in a binary manner i.e. True or False.

Monoamniotic twins -- Monoamniotic twins are identical twins that share the same amniotic sac within their mother's uterus. Monoamniotic twins are always identical, always monochorionic and are usually termed Monoamniotic-Monochorionic (``MoMo'' or ``Mono Mono'') twins. They also share the placenta, but have two separate umbilical cords. Monoamniotic twins develop when an embryo does not split until after formation of the amniotic sac, at about 9-13 days after fertilization. Monoamniotic triplets or other monoamniotic multiples are possible, but extremely rare. Other obscure possibilities include multiples sets where monoamniotic twins are part of a larger gestation such as triplets, quadruplets, or more.
do identical twins have to be in the same sac

Memphis (musical) -- Memphis is a musical by David Bryan (music and lyrics) and Joe DiPietro (lyrics and book). It is loosely based on Memphis disc jockey Dewey Phillips, one of the first white DJs to play black music in the 1950s. It played on Broadway from October 19, 2009 to August 5, 2012. This production won four 2010 Tony Awards, including Best Musical. The show was previously staged at the North Shore Music Theatre in Beverly, Massachusetts and TheatreWorks in Mountain View, California during the 2003-04 season, as well as the 5th Avenue Theatre in Seattle during the 2008-2009 season.
is memphis the musical based on a true story

Colorado River -- The Colorado River is one of the principal rivers of the Southwestern United States and northern Mexico (the other being the Rio Grande). The 1,450-mile-long (2,330 km) river drains an expansive, arid watershed that encompasses parts of seven U.S. and two Mexican states. Starting in the central Rocky Mountains of Colorado, the river flows generally southwest across the Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona--Nevada border, where it turns south toward the international border. After entering Mexico, the Colorado approaches the mostly dry Colorado River Delta at the tip of the Gulf of California between Baja California and Sonora.

does the colorado river run through the grand canyon

