Tease out
Definition 1 of 3
Pro Tip 1/3Analytical Skill
Use 'tease out' to indicate a process of careful analysis to understand complex matters. 
It took time to tease out the implications of the new study.
Pro Tip 2/3Patience Required
'Tease out' often suggests a time-consuming process requiring patience and attention to detail. 
The editor had to tease out the main points from the lengthy article.
Pro Tip 3/3Not Literal
When not referring to actual threads or fibers, 'tease out' is metaphorical for understanding complications. 
We need to tease out the factors contributing to climate change.