| <!ELEMENT company (name, ticker_symbol?, description?, | |
| business_code, partners?, competitors?)> | |
| <!ELEMENT name (#PCDATA)> | |
| <!ELEMENT ticker_symbol (#PCDATA)> | |
| <!ELEMENT description (#PCDATA)> | |
| <!ELEMENT business_code (#PCDATA)> | |
| <!ELEMENT partners (partner+)> | |
| <!ELEMENT partner (#PCDATA)> | |
| <!ELEMENT competitors (competitor+)> | |
| <!ELEMENT competitor (#PCDATA)> |