Chain-of-thought annotated version of AI4Manufacturing/EMB-D29 ("Embedding Models for Industry 4.0 Agents"): the same ISO maintenance-knowledge items, with the reasoning field filled by a teacher LLM. Unified SFT schema, category A, task T-A2. English.

⚠️ This is a confidence-filtered SUBSET (648 of 1,138)

EMB-D29 is natively a retrieval / embedding dataset (query -> relevant set), not Q&A. CoT annotation only makes sense where the gold mapping… See the full description on the dataset page: https://huggingface.co/datasets/AI4Manufacturing/EMB-D29-annotated.