Are you connected to WiFi?, isn’t it slow?”
First part of above sentence is objectively denotes ‘WiFi’. The second part contextually denotes ‘WiFi’ through the word – ‘it’.
According Merriam-Webster, Context is defined as,
The parts of a discourse that surround a word or passage and can throw light on its meaning
Every tech giant is boasting that their digital assistants can understand our contextual conversation. Indeed it is a big step for machines to understand our natural speech.