I'm not from the wonderful land named Greece but when in school I studied old greek language for some time.
In my opinion there's no "gamma" at the beginning of the first word. Nor a "T" in between the word. The topping sign looks like a line that intersects the initial vertical one, like two sides of a box (mostly vanished).
So, if I'm right, the first word should be "kei" followed by a vanished one (we seems to read a tailing "e") on the firs row
Second row looks even more puzzling. Why use capital letters for "P" and "D" in the same word? What about the character that precedes the "P"? Could it be a lowercase omega? And, eventually, could the "P" be a "t" followed by an "i" ?
Anyway, if we keep just what we can read "kei ped" (no, it's not an ancient keypad)
@Magma conclusion (a child lying there) sounds ok.