BIP Query to get only base elements

Summary

BIP Query to get only base elements

Content

While creating elements, there will be shadow elements that will get created automatically. Is there anyway to get only the list of base element names. Example: If I create Pay Overtime as the base element name, there will be Pay Overtime Retro, Pay Overtime Results etc., 

Looking to get only the element name - Pay Overtime which was created from DB. Pay_element_types_f do not have any classification to identify (or am not aware, may be!)

Any leads will be helpful.