--- a/test-data/inspect.obs.tabular	Wed Jun 22 07:20:18 2022 +0000
+++ b/test-data/inspect.obs.tabular	Sun Nov 12 16:44:29 2023 +0000
@@ -1,4 +1,4 @@
-index	cell_type
+	cell_type
 0	progenitor
 1	progenitor
 2	progenitor
@@ -499,143 +499,3 @@
 17	progenitor
 18	progenitor
 19	progenitor
-20	progenitor
-21	progenitor
-22	progenitor
-23	progenitor
-24	progenitor
-25	progenitor
-26	progenitor
-27	progenitor
-28	progenitor
-29	progenitor
-30	progenitor
-31	progenitor
-32	progenitor
-33	progenitor
-34	progenitor
-35	progenitor
-36	progenitor
-37	progenitor
-38	progenitor
-39	progenitor
-40	progenitor
-41	progenitor
-42	progenitor
-43	progenitor
-44	progenitor
-45	progenitor
-46	progenitor
-47	progenitor
-48	progenitor
-49	progenitor
-50	progenitor
-51	progenitor
-52	progenitor
-53	progenitor
-54	progenitor
-55	progenitor
-56	progenitor
-57	progenitor
-58	progenitor
-59	progenitor
-60	progenitor
-61	progenitor
-62	progenitor
-63	progenitor
-64	progenitor
-65	progenitor
-66	progenitor
-67	progenitor
-68	progenitor
-69	progenitor
-70	progenitor
-71	progenitor
-72	progenitor
-73	progenitor
-74	progenitor
-75	progenitor
-76	progenitor
-77	progenitor
-78	progenitor
-79	progenitor
-80	Neu
-81	Neu
-82	Neu
-83	Neu
-84	Neu
-85	Neu
-86	Neu
-87	Neu
-88	Neu
-89	Neu
-90	Neu
-91	Neu
-92	Neu
-93	Neu
-94	Neu
-95	Neu
-96	Neu
-97	Neu
-98	Neu
-99	Neu
-100	Neu
-101	Neu
-102	Neu
-103	Neu
-104	Neu
-105	Neu
-106	Neu
-107	Neu
-108	Neu
-109	Neu
-110	Neu
-111	Neu
-112	Neu
-113	Neu
-114	Neu
-115	Neu
-116	Neu
-117	Neu
-118	Neu
-119	Neu
-120	Neu
-121	Neu
-122	Neu
-123	Neu
-124	Neu
-125	Neu
-126	Neu
-127	Neu
-128	Neu
-129	Neu
-130	Neu
-131	Neu
-132	Neu
-133	Neu
-134	Neu
-135	Neu
-136	Neu
-137	Neu
-138	Neu
-139	Neu
-140	Neu
-141	Neu
-142	Neu
-143	Neu
-144	Neu
-145	Neu
-146	Neu
-147	Neu
-148	Neu
-149	Neu
-150	Neu
-151	Neu
-152	Neu
-153	Neu
-154	Neu
-155	Neu
-156	Neu
-157	Neu
-158	Neu
-159	Neu