Handle missing selventa mappings

indra/sources/bel/processor.py

@@ -547,9 +547,14 @@ def get_db_refs_by_name(ns, name, node_data):
             db_refs = {'UP': up_id}
     # Map Selventa families and complexes to FamPlex
     elif ns == 'SFAM':
-        sfam_id, xrefs = selventa_lookup[('SFAM', name)]
-        db_refs = {'SFAM': sfam_id}
-        indra_name = bel_to_indra.get(name)
+        try:
+            sfam_id, xrefs = selventa_lookup[('SFAM', name)]
+            db_refs = {"SFAM": sfam_id}
+            indra_name = bel_to_indra.get(name)
+        except KeyError:
+            indra_name = None
+            db_refs = None
+
         if indra_name is None:
             logger.info('Could not find mapping for BEL/SFAM family: '
                         '%s (%s)' % (name, node_data))
@@ -614,9 +619,15 @@ def get_db_refs_by_name(ns, name, node_data):
         name = chebi_client.get_chebi_name_from_id(chebi_id)
     # SDIS, SCHEM: Look up the ID and include it in the db_refs
     elif ns in {'SDIS', 'SCHEM'}:
-        sid, xrefs = selventa_lookup[(ns, name)]
-        db_refs = xrefs.copy()
-        db_refs[ns] = sid
+        try:
+            sid, xrefs = selventa_lookup[(ns, name)]
+            db_refs = xrefs.copy()
+            db_refs[ns] = sid
+        except KeyError:
+            logger.info(
+                f"Could not map Selventa name {name} to ID for {ns}."
+            )
+            return name, None
     elif ns == 'TEXT':
         db_refs = {ns: name}
     elif ns == 'TAX':