# QUESTION
The lymphatic circulation begins with blind ending (closed at one end) highly permeable superficial lymph capillaries, formed by endothelial cells with button-like junctions between them that allow fluid to pass through them when the interstitial pressure is sufficiently high. These button-like junctions consist of protein filaments like platelet endothelial cell adhesion molecule-1, or PECAM-1. A valve system in place here prevents the absorbed lymph from leaking back into the ISF. There is another system of semilunar (semi = half; lunar = related to the Moon) valves that prevents back-flow of lymph along the lumen of the vessel. Lymph capillaries have many interconnections (anastomoses) between them and form a very fine network.

Answer this question: structure that prevents backflow of fluid in lymphatic vessels?
# ANSWER
The relevant information is: There is another system of semilunar (semi = half; lunar = related to the Moon) valves that prevents back-flow of lymph along the lumen of the vessel.
FINAL ANSWER: semilunar ( semi = half ; lunar = related to the Moon ) valves

# QUESTION
Cinderella (Italian: Cenerentola, French: Cendrillon, German: Aschenputtel), or The Little Glass Slipper, is a folk tale embodying a myth-element of unjust oppression and triumphant reward. Thousands of variants are known throughout the world. The title character is a young woman living in unfortunate circumstances, that are suddenly changed to remarkable fortune. The story of Rhodopis, recounted by the Greek geographer Strabo in around 7 BC, about a Greek slave girl who marries the king of Egypt, is usually considered as the earliest known variant of the "Cinderella" story. The first literary European version of the story was published in Italy by Giambattista Basile in his Pentamerone in 1634; the most popular version was published by Charles Perrault in Histoires ou contes du temps passe in 1697, and later by the Brothers Grimm in their folk tale collection Grimms' Fairy Tales in 1812.

Answer this question based on the passage: where did the original cinderella story come from?
# ANSWER
The important part for answering this question is: The story of Rhodopis, recounted by the Greek geographer Strabo in around 7 BC, about a Greek slave girl who marries the king of Egypt, is usually considered as the earliest known variant of the "Cinderella" story.
FINAL ANSWER: Greek

# QUESTION
Context: Belting (or vocal belting) is a specific technique of singing by which a singer mixes in the proper proportions, their lower and upper resonances; resulting a sound that resembles yelling but is actually a controlled, sustained phonation.' Belting' is sometimes described as' high chest voice' but this is technically incorrect and potentially damaging for the voice. It is often described as a vocal register, although this is also technically incorrect; it is rather a descriptive for the use of a register. Singers can use belting to convey heightened emotional states.

Question: what does it mean to belt a song?
# ANSWER
To answer the question, consider the following: Belting (or vocal belting) is a specific technique of singing by which a singer mixes in the proper proportions, their lower and upper resonances; resulting a sound that resembles yelling but is actually a controlled, sustained phonation.
FINAL ANSWER: a specific technique of singing by which a singer mixes in the proper proportions , their lower and upper resonances ; resulting a sound that resembles yelling but is actually a controlled , sustained phonation