There is one Q word that is not banned by Pep Guardiola. Quality.
And a mesmerising abundance of it is what might earn him the four-timer.
Want to up the ante when things are not quite coming off?
Well, there is a queue of quality players waiting to help out.
It was a queue headed on this particular match day by Kevin de Bruyne, involved in Ilkay Gundogan’s late opener and sealing the semi-final deal himself in the final moments.
De Bruyne was on the field for about 15 minutes - 15 minutes of class.

Riyad Mahrez also made an impact from the bench as Guardiola flexed his squad muscles.
The Manchester City manager is enjoying a fortunate run when it comes to the fitness of his personnel.
And if that carries on through and after the international break, then success on all fronts remains a strong possibility.
In the end, they walked this game, never really getting close to their gold standard but never really threatened by Everton.
This was an exercise becoming achingly familiar in games featuring City.
The opposition method is pretty basic.
Willingly surrender possession, drop deep, work like a demon.

It does not make for compelling viewing and you cannot imagine Carlo Ancelotti was overly comfortable with it but will feel he had no option.
And he could argue it worked until Gundogan popped up with the stalemate-breaker.
For long periods, City were not at their ingenious best, it has to be said.
Raheem Sterling strained like a player trying to prove a point, likewise Gabriel Jesus.
The Brazilian’s numbers are not bad, his attitude is unquestionable and Pep loves him.
But moves do seem to break down an unusual number of times when they reach Jesus.
No matter how many trophies Guardiola lifts this season, it is hard to see him not instructing the board to recruit a high-class striker.
There really is no other area in need of reinforcements and it might be he even trims the squad a little.
But the arrival of a forward is surely inevitable.

Someone who can do an occasional job as a conventional target man might come in useful, just to give Guardiola another attacking option.
For large parts of this game, City’s attacking patterns were a little predictable and while Everton were generally unacquainted with the ball, they were defensively comfortable.
If counting passes is your thing, City were making seven to every one of Everton’s.
And every one of Everton’s was normally a long-ranger, punting for position and hoping for a set-piece that might prove productive.
A couple almost did, to be fair, Yerry Mina causing a degree of alarm in one first half instance.
A full Goodison might have acknowledged the need for this approach in this particular match but would not put up with it on a regular basis.
You do not invest this sort of cash and you do not recruit Ancelotti to become a team with a reliance on the long throw-in.

And the bottom line is that while you might feel the need to play like this against City, it looks grim if you are still brushed aside.
Richarlison and Dominic Calvert-Lewin were more than capable of ruffling defensive City feathers but the service was occasional, to say the least.
But, of course, over-commitment to attack gives City the chance to punish on the counter and it was no surprise when De Bruyne capped his cameo with a neat finish.
So Ancelotti - who had some names on his bench that even Evertonians might not recognise - was probably damned if he did show too much ambition and damned if he did not.
That is because City have so much quality in so much depth.
Throughout the eleven, throughout the entire squad.
And that is why the Q word is on a lot of lips, if not Guardiola’s.
That is why the Quadruple is a real possibility.