Questions & Answers about Markmiðið er einfalt.
The sentence breaks down like this:
markmiðið – the goal / the objective
- markmið = goal, objective (a neuter noun)
- -ið = the definite ending for neuter singular (so markmið → markmiðið = the goal)
er – is
- The present tense of the verb að vera (to be).
einfalt – simple (here in the neuter singular nominative form, agreeing with markmiðið).
So structurally it is: the-goal is simple.