source: It involves retention, memory, repetition, enunciation, diction, and involves ten factors that use every letter in the alphabet a variety of times.
target: It involves retention, memory, repetition, enunciation and diction. Also, it involves ten factors that use every letter in the alphabet. The letters are used a variety of times.
references: It involves retention, memory, repetition, enunciation and diction. Also, it involves ten factors that use every letter in the alphabet. The letters are used a variety of times.