如何获取wordpress的acf-address-field插件创建的(子)字段?

I am using Advanced Custom Field Plugin along with acf-address-field. It creates a field 'address' which has child fields ( address1, address2, address3, city etc. ). When I try to get field using following code it works:

get_field('address');

It shows every thing but in html tags. For some reason I need just few child fields for example address1. I try to get it using following code but no luck:

get_field('address1');

It just show "false". Can any one please tell me how to get address1 field?

I looked at the code for the acf-address-field plugin and saw this function:

public function get_value( $post_id, $field ){...}

try calling that instead of get_field()