<start_of_text>Make qa system using farm reader, MultihopEmbeddingRetriever and WeaviateDocumentStore<response>{"version": "1.6.0", "components": [{"name": "weaviate_document_store", "type": "WeaviateDocumentStore", "params": {"timeout_config": [5, 15], "content_field": "content", "name_field": "name", "index_type": "hnsw", "duplicate_documents": "overwrite", "recreate_index": false}}, {"name": "multihop_embedding_retriever", "type": "MultihopEmbeddingRetriever", "params": {"model_format": "farm", "pooling_strategy": "reduce_mean", "top_k": 10, "progress_bar": true}}, {"name": "farm_reader", "type": "FARMReader", "params": {"context_window_size": 150, "use_gpu": true, "return_no_answer": false, "top_k_per_candidate": 3, "top_k_per_sample": 1, "num_processes": 0, "max_seq_len": 256, "doc_stride": 128, "confidence_threshold": 0}}], "pipelines": [{"name": "my_query_pipeline", "nodes": [{"inputs": ["Query"], "name": "multihop_embedding_retriever"}, {"inputs": ["multihop_embedding_retriever"], "name": "farm_reader"}]}]}<end_of_text>