TASK DEFINITION: Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.
PROBLEM: Crater Lake ( Klamath : giiwas ) is a caldera lake in south - central Oregon in the western United States . It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity . The lake partly fills a nearly 2,148 - foot ( 655 m ) - deep caldera that was formed around 7,700 ( ± 150 ) years ago by the collapse of the volcano Mount Mazama . There are no rivers flowing into or out of the lake ; the evaporation is compensated for by rain and snowfall at a rate such that the total amount of water is replaced every 250 years . With a depth of 1,949 feet ( 594 m ) , the lake is the deepest in the United States . In the world , it ranks ninth for maximum depth , and third for mean ( average ) depth .

SOLUTION: Crater Lake

PROBLEM: Nucleotides are organic molecules that serve as the monomer units for forming the nucleic acid polymers deoxyribonucleic acid ( DNA ) and ribonucleic acid ( RNA ) , both of which are essential biomolecules in all life - forms on Earth . Nucleotides are the building blocks of nucleic acids ; they are composed of three subunit molecules : a nitrogenous base , a five - carbon sugar ( ribose or deoxyribose ) , and at least one phosphate group . They are also known as phosphate nucleotides .

SOLUTION: Nucleotide

PROBLEM: Monsignor ( / mɒnˈsiːnjər / ) is an honorific form of address for those members of the clergy of the Catholic Church including bishops , honorary prelates and canons . In some cases , these ecclesiastical honorific titles derive from the pope , but in other cases it is simply a customary or honorary style belonging to a prelate or honorary prelate . These are granted to individuals who have rendered valuable service to the Church , or who provide some special function in Church governance , or who are members of bodies such as certain chapters . The title is never bestowed on those classified as religious in Catholicism . Although in some languages the word is used as a form of address for bishops , which is indeed its primary use in those languages , this is not customary in English . Monsignor is the apocopic form of the Italian monsignore , from the French mon seigneur , meaning `` my lord '' . It is abbreviated Mgr , Msgr , or Mons .

SOLUTION:
Monsignor