If statement #6 above is passed, then:
This paragraph has a font size of medium. The rule applied is "#id1 {font-size: medium}". This emphasized text should have a "larger" font size than the rest of the paragraph. The rule applied here is "#id2 {font-size: larger}". Now this emphasized text should have a font size of "large". The rule applied here is "#id3 {font-size: large}". The two "emphasized text" portions above should have the same font size. "p" is a parent of "em" here. All other properties of this page should be UA-default. UAs may differ in their interpretations of "same".