Some colleges are educational institutions. The easiest way to handle this is to begin by representing the premises in the same way we would if we were adopting the modern perspective. Doing this, we shade all of those areas of schools that are not educational institutions and of colleges that are not schools. Thus, we will shade the diagram as suggested below. All colleges are schools.
All schools are educational institutions.
Some colleges are educational institutions. However, we are not finished yet. We must now add the assumptions that the premises make about the sets referred to in their subject terms. Here this means that we must place a capital X in the area that represents colleges that are schools, since this is implied by the second premise. All colleges are schools.