AppleScript: How to click a Text “Button”?

Hello,

I'm trying to click the button "log out" using applescript.

To click the "Choose Photo..." button:

tell application "System Events"
    tell process "Uploader HD for Instagram"
    click button "Choose Photo..." of window "Uploader HD for Instagram"
    delay 1
    end tell
    end tell

The code above works as expected.

The problem is when I try to click the (log out) text with the same code, it does not work.
According to "Accessibility Inspector" the element is not a button.

UI AXRoleDescription: "text"

Can anyone please help me, how or what code I need to use?

I need to mention that already try using tab to focus the text and then return... but that doesn't work.

Any help will be much appreciated. Thank you.