diff --git a/src/ontology/uberon-edit.obo b/src/ontology/uberon-edit.obo
index 6ec4cd449..7815d310a 100644
--- a/src/ontology/uberon-edit.obo
+++ b/src/ontology/uberon-edit.obo
@@ -224717,8 +224717,7 @@ xref: RO:0002220
 
 [Typedef]
 id: ambiguous_for_taxon
-name: ambiguous_for_taxon
-def: "S ambiguous_for_taxon T if the class S does not have a clear referent in taxon T. An example would be the class 'manual digit 1', which encompasses a homology hypotheses that is accepted for some species (e.g. human and mouse), but does not have a clear referent in Aves - the referent is dependent on the hypothesis embraced, and also on the ontogenetic stage." [PHENOSCPAE:asilomar_mtg]
+name: ambiguous for taxon
 xref: RO:0002173
 is_metadata_tag: true
 is_class_level: true
@@ -224955,7 +224954,6 @@ xref: RO:0002285
 id: develops_from
 name: develops from
 xref: RO:0002202
-is_a: has_developmental_contribution_from ! has developmental contribution from
 
 [Typedef]
 id: develops_from_part_of
@@ -225039,9 +225037,7 @@ domain: UBERON:0001638 ! vein
 
 [Typedef]
 id: dubious_for_taxon
-name: dubious_for_taxon
-def: "S dubious_for_taxon T if it is probably the case that no instances of S can be found in any instance of T." [https://orcid.org/0000-0002-6601-2165]
-comment: this relation lacks a strong logical interpretation, but can be used in place of never_in_taxon where it is desirable to state that the definition of the class is too strict for the taxon under consideration, but placing a never_in_taxon link would result in a chain of inconsistencies that will take time to resolve. Example: metencephalon in teleost
+name: dubious for taxon
 xref: RO:0002174
 is_metadata_tag: true
 is_class_level: true
@@ -225071,8 +225067,6 @@ is_metadata_tag: true
 [Typedef]
 id: existence_ends_during
 name: existence ends during
-def: "Relation between continuant c and occurrent s, such that every instance of c ceases to exist during some s, if it does not die prematurely." [https://orcid.org/0000-0002-6601-2165]
-synonym: "ceases_to_exist_during" EXACT []
 xref: RO:0002492
 
 [Typedef]
@@ -225222,10 +225216,8 @@ xref: RO:0002372
 
 [Typedef]
 id: has_no_connections_with
-name: has_no_connections_with
-def: "A is has_no_connections_with B if there are no parts of A or B that have a connection with the other." [https://orcid.org/0000-0002-6601-2165]
+name: has no connections with
 xref: RO:0002475
-expand_assertion_to: "Class: <http://www.w3.org/2002/07/owl#Nothing> EquivalentTo: (BFO_0000050 some ?X) and (RO_0002170 some (BFO_0000050 some ?Y))" []
 is_metadata_tag: true
 is_class_level: true
 
@@ -225488,18 +225480,15 @@ xref: RO:0002572
 
 [Typedef]
 id: mutually_spatially_disjoint_with
-name: mutually_spatially_disjoint_with
+name: mutually spatially disjoint with
 xref: RO:0002171
-expand_assertion_to: "Class: <http://www.w3.org/2002/07/owl#Nothing> EquivalentTo: (BFO_0000050 some ?X) and (BFO_0000050 some ?Y)" []
 is_metadata_tag: true
 is_class_level: true
 
 [Typedef]
 id: never_in_taxon
-name: never_in_taxon
-def: "S never_in_taxon T iff: S SubClassOf in_taxon only not T." [PMID:20973947]
+name: never in taxon
 xref: RO:0002161
-expand_assertion_to: "Class: <http://www.w3.org/2002/07/owl#Nothing> EquivalentTo: ?X and (RO_0002162 some ?Y)" []
 is_metadata_tag: true
 is_class_level: true
 
@@ -225593,9 +225582,7 @@ is_metadata_tag: true
 
 [Typedef]
 id: present_in_taxon
-name: present_in_taxon
-def: "S present_in_taxon T if some instance of T has some S. This does not means that all instances of T have an S - it may only be certain life stages or sexes that have S." [https://orcid.org/0000-0002-6601-2165]
-synonym: "applicable for taxon" EXACT []
+name: present in taxon
 xref: RO:0002175
 is_metadata_tag: true
 is_class_level: true