diff --git a/IV/figures.sql b/IV/figures.sql
deleted file mode 100644
index eafcf03..0000000
--- a/IV/figures.sql
+++ /dev/null
@@ -1,5 +0,0 @@
-drop table if exists figures;
-create table figures (name text, way geometry);
-
-insert into figures (name, way) values ('fig3', ST_GeomFromText('LINESTRING(0 0, 12 0, 13 4, 20 2, 20 0, 32 0, 33 10, 38 16, 43 15, 44 10, 44 0, 60 0)'));
-insert into figures (name, way) values ('Žeimena', (select st_linemerge(st_union(p.way)) from planet_osm_line p where p.name = 'Žeimena'));
diff --git a/IV/tests.sql b/IV/tests.sql
new file mode 100644
index 0000000..8e05135
--- /dev/null
+++ b/IV/tests.sql
@@ -0,0 +1,10 @@
+\i wm.sql
+
+drop table if exists figures;
+create table figures (name text, way geometry);
+insert into figures (name, way) values ('fig3', ST_GeomFromText('LINESTRING(0 0, 12 0, 13 4, 20 2, 20 0, 32 0, 33 10, 38 16, 43 15, 44 10, 44 0, 60 0)'));
+
+drop table if exists bends;
+create table bends as (select * from detect_bends((select way from figures where name='fig3')));
+
+--insert into figures (name, way) values ('Žeimena', (select st_linemerge(st_union(p.way)) from planet_osm_line p where p.name = 'Žeimena'))
diff --git a/IV/bend.sql b/IV/wm.sql
similarity index 78%
rename from IV/bend.sql
rename to IV/wm.sql
index f36fc54..a6c2194 100644
--- a/IV/bend.sql
+++ b/IV/wm.sql
@@ -38,8 +38,3 @@ begin
   end loop;
 end
 $$ language plpgsql;
-
-drop table if exists bends;
-
---create table bends as (select * from detect_bends((select way from figures where name='fig3')));
-create table bends as (select * from detect_bends((select way from figures where name='Žeimena')));