How many strikes in bowling is a turkey?

The score is 90.

Explanation:

A turkey is three strikes in a row. The first strike is worth 10 pins plus the next two balls rolled. The second strike is worth another tens pins plus the next two balls rolled. The third strike is worth 10 pins plus the next two balls rolled. In order to count the value, I would need to know the next 1-2 frames pin count. See example below.

1st..2nd..3rd..4th..5th

..X.....X......X.....X.....X

.30...60....90..120..150

In the above scenario the, "turkey" (frames 1, 2, & 3) is worth 90 pins.

1st..2nd..3rd..4th..5th

..X.....X......X....9/.....X

.30...59....79...99....?

In the above scenario, the "turkey" (frames 1, 2, & 3) is worth 79 pins.