With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: In 1965, Mother McCree's Uptown Jug Champions evolved into the Warlocks, with the addition of Phil Lesh on bass guitar and Bill Kreutzmann on percussion. However, the band discovered that another group (which would later become the Velvet Underground) had recently selected the same name. In response, Garcia came up with "Grateful Dead" by opening a Funk & Wagnalls dictionary to an entry for "Grateful dead". The definition for "Grateful dead" was "a dead person, or his angel, showing gratitude to someone who, as an act of charity, arranged their burial". The band's first reaction was disapproval. Garcia later explained the group's reaction: "I didn't like it really, I just found it to be really powerful. [Bob] Weir didn't like it, [Bill] Kreutzmann didn't like it and nobody really wanted to hear about it." Despite their dislike of the name, it quickly spread by word of mouth, and soon became their official title.
text_B: If the naming session had been kept secret, would the band be called the Grateful Dead today?
NO.