Logical implications in classic logic

Question

I have the following problem:

If Joseph is playing piano or Joaquim is playing guitar, then John is not sleeping.

I perfectly understood the situation but didn't understand the second row of the truth table. For me if p and q are true then r is true (This is the same as what's on the first line), but there it's false. Can someone explain?

**UPDATE: From what I understood, it was placed all the possibilities. Why that? If p is true and q is true then r false is NOT a possibility.

Answer 1

$p:=$ he is playing piano
$1:=$ he is playing guitar
$r:=$ he is asleep

So the second raw means in the situation that ($p$) he is playing piano, ($q$) he is playing guitar and
($\lnot r)$ he is not asleep, then the given proposition of the problem is valid.