Probably this is not the best way of locating elements, but sometimes it’s needed to use these kind of locator strategy. A reason might be the lack of element identifiers.
|Select second element||E:nth-child(2)||//E|
|First <E> child||E:first-of-type||//E|
|Last <E> child||E:last-of-type||//E[last()]|
Examine your knowledge and play the ‘locator game‘.