Given two noun phrases (arguments) and relationship between them, form a sentence that expresses theses arguments with the given relationship.

[Q]: Relationship: 'be city in', Argument/Subject 1: 'siena', Argument/Subject 2: 'tuscany'
[A]: Siena is one of the leading art cities in Tuscany .


[Q]: Relationship: 'be bear in', Argument/Subject 1: 'william carlo william', Argument/Subject 2: 'rutherford'
[A]: William Carlos Williams was a born in Rutherford , New Jersey in 1883 .


[Q]: Relationship: 'be chairman of', Argument/Subject 1: 'president', Argument/Subject 2: 'committee'
[A]:
The Chairmen of each National Committee are ex-officio Vice Presidents of ALA .