They failed twice in their attempt to write “boa constrictor”
If you are looking for an example of effort, the following image will be helpful. Sometimes we cannot complete a task due to different circumstances. Still, rather than giving up, the best thing to do is keep trying until we succeed, having given the best of ourselves.
This person was unwilling to give up, so they admitted their condition and did their best to make themselves understood. We don’t know what a “boa construction” is, but we can assume they meant “boa constrictor” because they made it clear in their last attempt: the snake.