1. An apparatus comprising: an output interface; one or more processors; and one or more memories including computer program code, the one or more memories and the computer program code configured to, with the one or more processors, cause the apparatus at least to: obtain a sensor event created on the basis of sensor data generated by one or more sensors; determine relevance of the sensor event; and if the relevance of the sensor event fulfils a predetermined relevance condition, output, with the output interface, the sensor event according to its determined relevance.