According to Article II of the Constitution, one of the president’s duties is to
serve as commander in chief.
create laws and interpret them.
set up and manage the courts.
serve in the House and Senate.

it is a bolivia your welcome

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )

answer; how people relate to each other and influence each other;