could not understand this tweet by Kaplan's twitter account

[the nona]

" In #GMAT sentence correction, you must compare entity with entity or attribute with attribute - not one entity with the other's attribute "

https://twitter.com/KaplanGMATPrep/stat ... 0525264896

Can you please provide a further explanation ? Thanks in advance

[jonathanwylie]

Hi,

Glad to elaborate! Let's take two categories of things: 1) cities 2) the locations of those cities. The cities are the entities and the locations are attributes of those entities. You can compare one city with another (entity to entity) or the location of a city to the location of another city (attribute to attribute), but you cannot compare one city to another city's location (entity to attribute). Does that make sense? Basically saying you have to compare apples to apples. Let us know if you have more questions.

Best, Jonathan