See https://www.zabbix.com/documentation/4.0/manual/api/reference/item/object .

The interfaceid description says:

Optional for Zabbix agent (active), Zabbix internal, Zabbix trapper, Dependent item, Zabbix aggregate, database monitor and calculated items.

Notice how overall the sentence has a normal flow ("Optional for ...Zabbix trapper, ...database monitor and calculated items."), but one item type is inserted out of the normal form - "Dependent item".

It would read better as:

Optional for Zabbix agent (active), Zabbix internal, Zabbix trapper, Zabbix aggregate, database monitor, dependent and calculated items.