Obey the Rules of Grammar
From Video Game Music Preservation Foundation Wiki
Word Rescue (DOS) has three themes in the Plus episode. Obey the Rules of Grammar is a slow jazzy song that plays at the title screen, the game menus, the first game level, and every third level after that, but only in the Plus episode.
Bobby Prince also released an updated MIDI version of the track.
Its name in the game files is WR.4.