Question: How many dams are there in the Lake and Peninsula area?
Schema: create table table_17978052_2 (_number_s_dam_and_gnis_query_link integer, borough_or_census_area varchar, PRIMARY KEY (_number_s_dam_and_gnis_query_link))
SQL: select max(_number_s_dam_and_gnis_query_link) from table_17978052_2 where borough_or_census_area = "lake and peninsula"