public static void main(String[] args) {
		StandaloneApplication standaloneApplication = new StandaloneApplication();
		standaloneApplication.execute(args);
	}

let result : Integer = Person.allInstances()->select(a | a.coactors->exists(areCoupleCoactors(a)))->size()

		Library library = getLibrary(resourceSet);  // get library from a hypothetical source

		// use the constraints defined in the OCL document

		// use getBooks() from the document in another query to find a book
		ExpressionInOCL expression = ocl.createQuery(EXTLibraryPackage.Literals.LIBRARY,
				"getBooks('Bleak House')->asSequence()->first()");

		Book book = (Book) ocl.evaluate(library, expression);
		debugPrintf("Got book: %s%n\n", book);

		URI uri = getInputURI("/models/documentation/parsingDocumentsExample.ocl");

final Resource scriptResource = ocl.parse(org.eclipse.emf.common.util.URI.createURI(script.toUri().toString()));
for (EObject eObj : (Iterable<EObject>) scriptResource::getAllContents) {
	if (eObj instanceof Operation) {
		Operation op = (Operation) eObj;
		if ("QUERY".equals(op.getName())) {
			EObject contextElement = null;	// What should this be?
			ExpressionInOCL asQuery = ocl.createQuery(contextElement, op.getBodyExpression().getBody());
			System.out.println(ocl.evaluate(contextElement, asQuery));
		}
	}
}

def: QUERY() : Integer = Person.allInstances()->select(a | a.coactors->exists(areCoupleCoactors(a)))->size()

org.eclipse.ocl.pivot.utilities.SemanticException: The «unknown» '«null»' is invalid: 'Person.allInstances()->select(a | a.coactors->exists(areCoupleCoactors(a)))->size()'
1:1: Unresolved Property '::Person'
1:37: Unresolved Property 'OclInvalid::coactors'

String typeName = "Actor";
EClass targetType = metamodelPackage.eContents().stream().map(EObject::eClass).filter(e -> e.getName().equals(typeName)).findAny().orElse(null);
EObject contextElement = modelResource.getContents().stream().filter(e -> e.eClass().equals(targetType)).findAny().orElse(null);

Exception in thread "main" org.eclipse.ocl.pivot.utilities.SemanticException: The «unknown» '«null»' is invalid: 'Person.allInstances()->select(a | a.coactors->exists(areCoupleCoactors(a)))->size()'
1: Unresolved Iteration '::select(a| a.coactors->exists(areCoupleCoactors(a)))'
1: No implicit source
	at org.eclipse.ocl.pivot.utilities.PivotUtil.checkResourceErrors(PivotUtil.java:210)
	at org.eclipse.ocl.pivot.internal.context.AbstractParserContext.parse(AbstractParserContext.java:233)
	at org.eclipse.ocl.pivot.internal.helper.OCLHelperImpl.createQuery(OCLHelperImpl.java:133)
	at org.eclipse.ocl.pivot.utilities.OCL.createQuery(OCL.java:281)
	at Minimal.main(Minimal.java:51)

	public static void main(String... args) throws Exception {
		CompleteOCLStandaloneSetup.doSetup();

		OCL ocl = OCL.newInstance();
		ResourceSet resourceSet = ocl.getResourceSet();
		resourceSet.getPackageRegistry().put(MoviesPackage.eNS_URI, MoviesPackage.eINSTANCE); //metamodelPackage);

		// Model
		String modelFilePath = "model/imdb-small.xmi";
		URI modelUri = URI.createURI(modelFilePath);
		Resource modelResource = resourceSet.getResource(modelUri, true);

		// Script
		String scriptFilePath = "model/script.ocl";
		ASResource scriptResource = ocl.parse(URI.createURI(scriptFilePath));

		EObject contextElement = modelResource.getContents().get(0);
		ExpressionInOCL asQuery = ocl.createQuery(contextElement.eClass(), "Person.allInstances()->select(a | a.coactors->exists(areCoupleCoactors(a)))->size()");
		System.out.println(ocl.evaluate(contextElement, asQuery));
		ocl.dispose();
	}

"/path/to/script.ocl" 
"/path/to/imdb-0.5.xmi" 
"/path/to/movies.ecore" 
-profile -results

	public @NonNull List<CollectionLiteralPart> getOwnedParts()
	{
		if (ownedParts == null)
		{
			ownedParts = new EObjectContainmentEList<CollectionLiteralPart>(CollectionLiteralPart.class, this, 10);
		}
		return ownedParts;
	}