Often, when requirements are written, parts of the domain knowledge are assumed by the domain experts and not formalized in writing, but nevertheless used to build software artifacts. This issue, known as tacit knowledge, affects the performance of Traceability Links Recovery. LORE tool uses Natural Language Processing techniques along with an Ontological Requirements Expansion process to minimize the impact of tacit knowledge on Traceability Links Recovery over process models. A prototype of LORE can be found at: