Table: iaaf_2008_women_400m
Columns: heat
lane
name
country
mark

Question: what is the name when the lane is less than 4 and mark is 52.64?
SQL: SELECT "name" FROM iaaf_2008_women_400m WHERE "lane" < 4 AND "mark" = '52.64'

Question: what is the number of times that the heat is 3 and the name is cxhristy ekpukhon ihunaegbo?
SQL: SELECT COUNT("lane") FROM iaaf_2008_women_400m WHERE "heat" = 3 AND "name" = 'cxhristy ekpukhon ihunaegbo'