In this tab example you would play an e major chord e dominant seventh chord e minor pentatonic scale e minor chord

you need to take into account how many major and minor thirds there are. If in the tab there are 3 notes together it will be a chord if its seperated notes then it is the pentatonic scale and if it has more then three notes it is the dominant seventh

b energy transmission, d energy distribution, and e energy education

trying using google im so sorry