diff --git a/abl/learning/abl_model.py b/abl/learning/abl_model.py
index f1512fe..8c8b2f9 100644
--- a/abl/learning/abl_model.py
+++ b/abl/learning/abl_model.py
@@ -10,7 +10,7 @@
 #
 # ================================================================#
 import pickle
-from utils import flatten, reform_idx
+from ..utils import flatten, reform_idx
 from typing import List, Any, Optional
 
 
diff --git a/abl/reasoning/kb.py b/abl/reasoning/kb.py
index b700aa1..b551df0 100644
--- a/abl/reasoning/kb.py
+++ b/abl/reasoning/kb.py
@@ -142,7 +142,7 @@ class ground_KB(KBBase):
             key_idx = bisect.bisect_left(key_list, y)
             
             all_candidates = []
-            for idx in range(key_idx - 1, 0, -1):
+            for idx in range(key_idx - 1, -1, -1):
                 k = key_list[idx]
                 if abs(k - y) <= self.max_err:
                     all_candidates.extend(potential_candidates[k])
diff --git a/examples/hed/hed_example.ipynb b/examples/hed/hed_example.ipynb
index 2e5add3..71830bd 100644
--- a/examples/hed/hed_example.ipynb
+++ b/examples/hed/hed_example.ipynb
@@ -12,7 +12,7 @@
     "\n",
     "from abl.reasoning import ReasonerBase, prolog_KB\n",
     "from abl.learning import BasicNN, ABLModel\n",
-    "from abl.evaluation import SymbolMetric, ABLMetric\n",
+    "from abl.evaluation import SymbolMetric, SemanticsMetric\n",
     "from abl.utils import ABLLogger, reform_idx\n",
     "\n",
     "from examples.hed.hed_bridge import HEDBridge\n",
@@ -206,7 +206,7 @@
    "outputs": [],
    "source": [
     "# Add metric\n",
-    "metric = [SymbolMetric(prefix=\"hed\"), ABLMetric(prefix=\"hed\")]"
+    "metric = [SymbolMetric(prefix=\"hed\"), SemanticsMetric(prefix=\"hed\")]"
    ]
   },
   {