a work that was originally performed by someone else's body. The performer needs to have a grasp on each nuanced movement used by the original author and develop their own interpretation. Rose notes that ASL artists have greater artistic authority over their own works than artists of other genres, and even when other artists perform ASL poems there is still an element of the original author in the piece. Sign language poetry is significantly different from poetry for spoken languages, but uses some techniques that are parallel. For example, alliteration of consonant sounds is often important in spoken language poetry, but a form of alliteration, the repetition of handshapes and other features, is also appreciated as an artistic feature in a parallel way for signed poetry. Some well known deaf poets are Clayton Valli, Ella Mae Lentz, and Patrick Graybill, who are all featured on the 1990 video series, Poetry in Motion: Original Works in ASL. In the early 1990s, Calyton Valli was the first person to study ASL poetry with the intent of trying to figure out how to define a 'line' in ASL poetry, just as one might in a spoken/written poetic genre. He began by studying the phonetic features of ASL such as handshape, movement, palm orientation and nonmanual markers to determine whether or not ASL poetry was able to rhyme as spoken languages do. Due to ASL having multiple phonological features that occur simultaneously, ASL signs are able to rhyme in several ways at once, which spoken languages cannot accomplish. For instance, in Valli's poem "Snowflake", the signs for LEAVES-FALL and GRASS-WITHER both phrases use two hands in the 5 handshape that move in a downward motion with a furrowed brow, creating three simultaneous rhymes. Bauman has tried to find other features to define the concept of 'line' in ASL poetry, rather than focusing on phonological line breaks that limit ASL poetry to being analyzed in the same manner as spoken languages. He notes that the visual and kinetic nature of ASL allows 'line' to be analyzed in terms of the body's movements through space, so that 'line' is no longer limited to a strict left-to-right direction. He applies the Oxford English Dictionary definition of line, "a direction and course of movement" directly to how one might analyze the visual line of ASL poetry. His method of analysis includes looking at how cinematographic techniques and visual