You will be given a definition of a task first, then some input of the task.
Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Sentence: 'Koh Chang happens to be the second largest island in Thailand at around 30km long and 14km wide and it is also referred to as lephant Island Situated in Eastern Thailand , close to the Cambodian border , Koh Chang is 85 % part National park .', Argument/Subject 1: 'koh chang', Argument/Subject 2: 'thailand'
Output:
be island of