Troubles with representing correct odoo form

I’m doing odoo tutorial and a have problem with correct representation of form. It should look like this in odoo tutorial

but it comes out differently when apply my xml file with form description

My xml settings:

<record id="estate_property_view_form" model="ir.ui.view">
<field name="name">estate.property.form</field>
<field name="model">estate.property</field>
<field name="arch" type="xml">
    <form string="Lost Reason">
      <sheet>
          <h1 class="mb32">
              <field name="name" class="mb16"/>
          </h1>
          <group>
              <group>
                  <field name="property_type_id" string="Property Type"/>
                  <field name="postcode"/>
                  <field name="date_availability"/>
              </group>
              <group>
                  <field name="expected_price"/>
                  <field name="selling_price"/>
              </group>
              <notebook>
                  <page string="Description">
                    <group>
                        <field name="tag_ids" string="Tag" widget="many2many_tags"/>
                        <field name="description"/>
                        <field name="bedrooms"/>
                        <field name="living_area"/>
                        <field name="facades"/>
                        <field name="garage"/>
                        <field name="garden"/>
                        <field name="garden_area"/>
                        <field name="garden_orientation"/>
                        <field name="postcode"/>
                    </group>
                  </page>
              </notebook>
              <notebook>
                  <page string="Other info">
                    <group>
                        <field name="buyer"/>
                        <field name="salesperson"/>
                    </group>
                  </page>
              </notebook>
             <notebook>
                  <page string="Offers">
                    <group>
                        <field name="offer_ids"/>
                    </group>
                  </page>
              </notebook>
          </group>
      </sheet>
    </form>
</field>

I watched all tutorials all over, but didn’t find any solution for my problem. Thanks for a help.

Answer

You have created 3 different notebook tag which leads to give you output. Try with 1 notebook tag with 3 pages. It will give correct output.

Generally, 1 form view has 1 notebook tag.