diff --git a/2_SAR/run_sar/1_cut_train-samples_eg.py b/2_SAR/run_sar/1_cut_train-samples_eg.py
index 4bee529..99455c1 100644
--- a/2_SAR/run_sar/1_cut_train-samples_eg.py
+++ b/2_SAR/run_sar/1_cut_train-samples_eg.py
@@ -7,7 +7,7 @@
 sar_prep_dir = '/home/zhouyj/software/2_SAR/preprocess'
 shutil.copyfile('config_eg.py', os.path.join(sar_prep_dir, 'config.py'))
 fpha = 'input/eg_pal_hyp.pha'
-fpick = 'input/eg_pal.pick' 
+fpick = 'input/eg_pal.pick'  # all PAL picks
 out_root = '/data/bigdata/eg_train-samples_sac'
 num_workers = 10