For my work I am dependent on a coworker to analyse all the information that's available and condense it down into specific input, which I can then use to start my process. Unfortunately, this coworker isn't doing their part by providing incomplete input.
It feels like they are telling me to complete the input on my own, which I'd like to avoid since it's clearly outside the responsibilities of my role. Is there a way to convey this to the coworker without causing a conflict?