Here's a sample DECLARE model for a Purchase-to-Pay process:
```
DECLARE {
    'existence': {
        'Order': {'support': 1.0, 'confidence': 1.0},
        'Invoice': {'support': 1.0, 'confidence': 1.0},
        'Payment': {'support': 1.0, 'confidence': 1.0},
        'Rejection': {'support': 1.0, 'confidence': 1.0},
        'Confirmation': {'support': 1.0, 'confidence': 1.0}
    },
    'absence': {},
    'exactly_one': {},
    'init': {'Order': {'support': 1.0, 'confidence': 1.0}, 'Request for Quotation': {'support': 1.0, 'confidence': 1.0}},
    'responded_existence': {
        'Invoices': [['Invoice', 'Responded_to_in_Quotation.Disclaimer', 1.0, 1.0], ['Invoice', 'Responded_to_in_Order', 1.0, 1.0]]
    },
    'coexistence': {
        'Invoices': [['Invoice', 'Confirmation', 1.0, 1.0]]
    },
    'response': {
        'Invoices': [['Invoice', 'Confirmation', 1.0, 1.0]], 
        ['Confirmation', 'Invoices', 1.0, 1.0]
    },
    'precedence': {
        'Invoices': [['Confirmation', 'Invoice', 1.0, 1.0]]
    },
    'succession': {
        'Payments': [['Payment', 'Confirmation', 1.0, 1.0]]
    },
    'altresponse': {
        'Invoice': [['Invoice', 'Dispute', 1.0, 1.0], ['Dispute', 'Invoice', 1.0, 1.0]]
    },
    'altprecedence': {
        'Confirmation': [['Confirmation', 'Invoice', 1.0, 1.0], ['Invoice', 'Confirmation', 1.0, 1.0]]
    },
    'chainsuccession': {
        'Rejection': [['Rejection', 'Invoice', 1.0, 1.0], ['Invoice', 'Rejection', 1.0, 1.