A junction where priority is not regulated by signs is a priority uncontrolled junction. Here you must give way to drivers coming from the right and to trams coming from the left or right.
Approach such a junction carefully and if you have to give way, do so in such a way that it is clear to the other person that you are going to give way.
In the image, the car and cyclist come from the right in front of the motorbike. No matter which direction the car and cyclist are going, the driver of the motorbike must let the car and cyclist pass first.