Causal ambiguity in Natural Language: conceptual representation of ‘parce que/because’ and ‘puisque/since’ Adeline Nazarenko-Perrin author 1992 text COLING 1992 Volume 3: The 14th International Conference on Computational Linguistics conference publication nazarenko-perrin-1992-causal https://aclanthology.org/C92-3131/ 1992