Certain verbs make people mention either the subject or object in their explanations, known as the implicit causality bias. This study looked at why this bias happens. One idea is that it's due to the words used and how they relate to cause and effect. Another idea is that it's because of missing information in the conversation. The researchers found that when the usual assumptions about these verbs are broken, people make different assumptions and change who they mention in their explanations. This shows that what's happening in the conversation can affect who gets mentioned when explaining things.