The second question:

The third question:

The fourth question:

This part of the extended information mainly examines the knowledge points of position relationship:

In a small range, the position relationship is generally expressed by front, back, left and right. The positional relationship is relative, that is to say, you need to look at specific reference objects, and different reference objects will lead to different positional relationships. For example, when waiting in line, Xiao Ming is in front of Xiao Hua, so conversely, Xiao Hua is behind Xiao Ming.

The sun rises in the east and sets in the west. Most people choose to build houses from north to south. East, west, south and north here all refer to the direction.

There are also positional relationships between the relative positions of objects and reference objects, such as front, back, up, down, left, right, east, south, west and north. By extension, for example, jobs, leaders and employees are a superior-subordinate relationship, not a physical position relationship, but also an ideological or power position relationship.