. . . . . . . . "Here a 'cancer cell engaged in extracellular matrix' is defined as the intersection between the classes 'cancer cell' and 'extracellular matrix', but as the latter is defined as 'structure external to cells' this intersection is empty. I think this should rather be defined as a subclass of 'cancer cell' with some (possibly informal) link to the concept of 'extracellular matrix'." . "5" . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB" . "WE+bP6YdhSp2dnmV8zDebbCDJJ6PG1+R9u1xw48SQQabezDhtd/hmxibATXKxa1SBdEfWq4WlMVHlnATixMtssA4/c7TgiI5wGBk5QVMQC1cG8eOLFl3bvHIS3Q945RpG6Yt1wKB3RKsO4SWtd0dJ9OM8qiYNBMpVQgcJP5ahwM=" . . "2021-06-23T07:05:18.750+02:00"^^ . . . . .