Question: The artist who released "State of Grace" and "Begin Again" is known for singing about what topic?

Context articles: Begin Again (Taylor Swift song)
Purpose + Grace
Vanity label
State of Grace (Taylor Swift song)
Grace Weber
Vocal range
Apollonius of Perga
Pathfinder (library science)
Maggie Grace
Maryland Route 155

"Begin Again" is a song written and recorded by American singer-songwriter Taylor Swift for her fourth studio album, "Red" (2012).
 Swift co-produced the song with Nathan Chapman and Dann Huff.
 Initially released as a promotional single on September 25, 2012 by Big Machine Records, the song served as the second single from "Red" on October 1, 2012.
 "Begin Again" is a country song, with the lyrical content finds Swift falling in love again after a failed relationship.
Purpose + Grace is a 2011 album recorded by the English guitarist and banjo player Martin Simpson and released on the Topic Records label.
 The album features a mixture of traditional and original material.
A vanity label (see related topic on vanity press) is an informal name given sometimes to a record label founded as a wholly or partially owned subsidiary of another, larger and better established (at least at the time of the vanity label's founding) record label, where the subsidiary label is (at least nominally) controlled by a successful recording artist, designed to allow this artist to release music by other artists they admire.
 The parent label handles the production and distribution and funding of the vanity label, but the album is usually released with the vanity label brand name prominent.
 Usually, the artist/head of the vanity label is signed to the parent label, and this artist's own recordings will be released under the vanity label's brand name.
 Creating a vanity label can be an attractive idea for the parent label primarily as a "perk" to keep a successful artist on the label's roster happy and a venue to bring fellow artists to the public's attention.
"State of Grace" is a song by American singer-songwriter Taylor Swift from her fourth studio album "Red" (2012).
 It was released to the iTunes Store on October 16, 2012, in the United States by Big Machine Records as the fourth and final promotional single from the album.
 It was the only promotional single from the album that was not re-issued as an official single, as "Begin Again", "Red", and "I Knew You Were Trouble", were all later re-issued as official singles.
 The song was written by Swift and produced by Nathan Chapman and Swift.
 Musically, the song is a departure from Swift's typical country pop, using influences of alternative rock while being compared to bands such as U2, Muse and The Cranberries.
 The song has received immense praise from music critics, who have complimented its broader sound in comparison with Swift's previous material.
Grace Weber is a Grammy Award winning recording artist from Milwaukee, WI.
 Grace grew up singing in the Central City Youth Gospel Choir of Milwaukee, before gaining recognition for her performances on The Oprah Winfrey Show and Showtime at the Apollo.
Vocal range is the measure of the breadth of pitches that a human voice can phonate.
 Its most common application is within the context of singing, where it is used as a defining characteristic for classifying singing voices into groups known as voice types.
 It is also a topic of study within linguistics, phonetics, and speech and language pathology, particularly in relation to the study of tonal languages and certain types of vocal disorders, although it has little practical application in terms of speech.
Apollonius of Perga (Greek: Ἀπολλώνιος ὁ Περγαῖος ; Latin: "Apollonius Pergaeus" ; late 3rd – early 2nd centuries BC) was a Greek geometer and astronomer known for his theories on the topic of conic sections.
 Beginning from the theories of Euclid and Archimedes on the topic, he brought them to the state they were in just before the invention of analytic geometry.
 His definitions of the terms ellipse, parabola, and hyperbola are the ones in use today.
A pathfinder is a bibliography created to help begin research in a particular topic or subject area.
 (Pathfinders are also referred to as subject guides, topic guides, research guides, information portals, resource lists or study guides).
 Pathfinders produced by the Library of Congress are known as "tracer bullets".
 What is special about a pathfinder is that it only refers to the information in a specific location, i.e. the shelves of a local library.
Maggie Grace (born Margaret Grace Denig; September 21, 1983) is an American actress, best known for her roles as Shannon Rutherford on the ABC television series "Lost" and Kim Mills in the "Taken" trilogy.
 She has also appeared on "The Twilight Saga" as "Irina".
 Originally from Worthington, Ohio, she went on to earn a Young Artist Award nomination in 2002 with her portrayal of 15-year-old murder victim Martha Moxley in the television movie "Murder in Greenwich".
 In 2004, Grace was cast as Shannon Rutherford in the television series "Lost", on which she was a main cast member for the first two seasons, winning a Screen Actors Guild Award shared with the ensemble cast.
 Leaving the series, Grace was keen to work more prominently in film, she appeared in "The Jane Austen Book Club" (both 2007), and opposite Liam Neeson as Kim Mills in "Taken" in 2008.
 She reprised the role in "Taken 2" (2012) and "Taken 3" (2015).
Maryland Route 155 (MD 155) is a state highway in the U.S. state of Maryland.
 Known for most of its length as Level Road, the state highway runs 9.06 mi from MD 22 in Churchville east to U.S. Route 40 (US 40) and MD 7 in Havre de Grace.
 In conjunction with MD 22, MD 155 serves as the main highway linking Bel Air and Havre de Grace in eastern Harford County.
 The state highway also connects Havre de Grace with Interstate 95 (I-95) and Susquehanna State Park.
 The first portion of MD 155 near Havre de Grace was built by 1910; the remainder of the highway east of Hopewell Village was completed in the mid-1920s.
 The Churchville–Hopewell Village portion of the state highway, originally designated MD 156, was built in the mid-1930s.
 MD 155 received its present designation over its western half in 1952 when MD 155 and MD 156 swapped paths.