name the common architecture of the st . luke's chapel and first presbyterian church ?
SELECT DISTINCT var_uri where brack_open dbr_St._Luke's_Chapel_ attr_open Stamford,_Connecticut attr_close dbo_architecturalStyle var_uri sep_dot dbr_First_Presbyterian_Church_ attr_open Hartford_City,_Indiana attr_close dbo_architecturalStyle var_uri brack_close