Final answer:
Swinney assumed that context played an important role in resolving ambiguities.
Step-by-step explanation:
In the context of resolving ambiguities, Swinney assumed that context plays an important role. This means that the meaning of a particular word or phrase can change depending on the context in which it is used. For example, the word 'bat' can refer to a flying mammal or a piece of sports equipment, and the context determines the intended meaning.