erzeuge ein sssom mapping nach darwincore (https://dwc.tdwg.org) der datenbank tabelle CollectionEvent die hier definiert ist: https://www.diversityworkbench.de/manual/dwb_latest/modules/diversitycollection/internals_dc/database_dc/database_structure_dc/database_tables_dc/index.html#table-collectionevent. Halte Dich strikt an die Definition der tabelle CollectionEvent. Füge keine Spalten hinzu und lasse keine weg.

please create a sssom mapping to darwincore (https://dwc.tdwg.org) for the database table CollectionEvent as defined below: 
### Table **CollectionEvent**
The event where and when the specimen were collected
| Column | Data type | Description | Nullable | Relation |
| --- | :-: | --- | :-: | --- |
| __CollectionEventID__| int| Unique ID for the table CollectionEvent (= primary key)| NO| -|
| Version| int| The version of the data set. Automatically set by the system.Default value: (1)| NO| -|
| SeriesID| int| The ID of the related expedition. Relates to the PK of the table CollectionExpedition (foreign key). | YES| Refers to table CollectionEventSeries|
| CollectorsEventNumber| nvarchar (50)| Number assigned to a collection event by the collector (= 'field number')| YES| -|
| CollectionDate| datetime| The cached date of the collection event calulated from the entries in CollectionDay, -Month and -Year.| YES| -|
| CollectionDay| tinyint| The day of the date of the event or when the collection event started| YES| -|
| CollectionMonth| tinyint| The month of the date of the event or when the collection event started| YES| -|
| CollectionYear| smallint| The year of the date of the event or when the collection event started| YES| -|
| CollectionEndDay| tinyint| The day of the date of the event or when the collection event ended| YES| -|
| CollectionEndMonth| tinyint| The month of the date of the event or when the collection event ended| YES| -|
| CollectionEndYear| smallint| The year of the date of the event or when the collection event ended| YES| -|
| CollectionDateSupplement| nvarchar (100)| Verbal or additional collection date information, e.g. 'end of summer 1985', 'first quarter', '1888-1892'. The end date, if the collection event comprises a period. The time of the event, if necessary.| YES| -|
| CollectionDateCategory| nvarchar (50)| Category of the date of the identification e.g. "system", "estimated"  (= foreign key, see  in table CollEventDateCategory_Enum)| YES| Refers to table CollEventDateCategory_Enum|
| CollectionTime| varchar (50)| The time of the event or when the collection event started| YES| -|
| CollectionTimeSpan| varchar (50)| The time span e.g. in seconds of the collection event| YES| -|
| LocalityDescription| nvarchar (MAX)| Locality description of the locality exactly as written on the original label (i.e. without corrections during data entry)| YES| -|
| LocalityVerbatim| nvarchar (MAX)| Locality as given in historical context, documents and labels| YES| -|
| HabitatDescription| nvarchar (MAX)| Geo-ecological description of the locality exactly as written on the original label (i.e. without corrections during data entry)| YES| -|
| ReferenceTitle| nvarchar (255)| The title of the publication where the collection event was published. Note that this is only a cached value where ReferenceURI is present| YES| -|
| ReferenceURI| varchar (255)| URI (e.g. LSID) of the source publication where the collection event is published, may e.g. refer to the module DiversityReferences| YES| -|
| ReferenceDetails| nvarchar (50)| The exact location within the reference, e.g. pages, plates| YES| -|
| CollectingMethod| nvarchar (MAX)| Description of the method used for collecting the samples, e.g. traps, moist chambers, drag net| YES| -|
| Notes| nvarchar (MAX)| Notes on the collection event| YES| -|
| CountryCache| nvarchar (50)| The country where the collection event took place. Cached value derived from an entry in CollectionEventLocalisation| YES| -|
| DataWithholdingReason| nvarchar (255)| If the data set is withhold, the reason for withholding the data, otherwise null| YES| -|
| DataWithholdingReasonDate| nvarchar (50)| The reason for withholding the collection date| YES| -|
| LogCreatedWhen| datetime| Point in time when this data set was createdDefault value: getdate()| YES| -|
| LogCreatedBy| nvarchar (50)| Name of the creator of this data setDefault value: suser_sname()| YES| -|
| LogUpdatedWhen| datetime| Point in time when this data set was updated lastDefault value: getdate()| YES| -|
| LogUpdatedBy| nvarchar (50)| Name of the person to update this data set lastDefault value: suser_sname()| YES| -|

 The mapping should contain the sssom columns subject_id, subject_label, predicate_id, object_id, object_label, mapping_justification, comment.