diff --git a/docs/features/featuresbydatatype.md b/docs/features/featuresbydatatype.md
index eaa6b59..148aa59 100644
--- a/docs/features/featuresbydatatype.md
+++ b/docs/features/featuresbydatatype.md
@@ -50,7 +50,7 @@ Name | Feature group | Feature type | Available on node | Description | Examples
 [oslots](oslots.md) | [`Config`](featuresbyfeaturetype.md#config-features) | [`Edge`](featuresbyfeaturetype.md#edge-features) | [`word`](featuresbynodetype.md#word-nodes) [`wg`](featuresbynodetype.md#wordgroup-nodes) [`Sentence`](featuresbynodetype.md#sentence-nodes) [`verse`](featuresbynodetype.md#verse-nodes) [`chapter`](featuresbynodetype.md#chapter-nodes) [`Book`](featuresbynodetype.md#book-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) [`subphrase`](featuresbynodetype.md#subphrase-nodes) [`Group`](featuresbynodetype.md#group-nodes) [`Clause`](featuresbynodetype.md#clause-nodes) | Represents set of slots associated with an object | `1` `1-11` `2010-2015,2020-2030`
 [otype](otype.md) | [`Grid`](featuresbygroup.md#grid-features) | [`Node`](featuresbyfeaturetype.md#node-features) | [`word`](featuresbynodetype.md#word-nodes) [`wg`](featuresbynodetype.md#wordgroup-nodes) [`Sentence`](featuresbynodetype.md#sentence-nodes) [`verse`](featuresbynodetype.md#verse-nodes) [`chapter`](featuresbynodetype.md#chapter-nodes) [`Book`](featuresbynodetype.md#book-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) [`subphrase`](featuresbynodetype.md#subphrase-nodes) [`Group`](featuresbynodetype.md#group-nodes) [`Clause`](featuresbynodetype.md#clause-nodes)  | Maps node number to objecttype | `word` `sentence` `book` 
 [parent](parent.md#start) | [`Relational`](featuresbygroup.md#relational-features) | [`Edge`](featuresbyfeaturetype.md#edge-features)  | [`word`](featuresbynodetype.md#word-nodes) [`wg`](featuresbynodetype.md#wordgroup-nodes) [`Sentence`](featuresbynodetype.md#sentence-nodes) [`verse`](featuresbynodetype.md#verse-nodes) [`chapter`](featuresbynodetype.md#chapter-nodes) [`Book`](featuresbynodetype.md#book-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) [`subphrase`](featuresbynodetype.md#subphrase-nodes) | Edge between a node and its parent node |
-[person](person.md#start) | [`Morphological`](featuresbygroup.md#morphological-features) | [`Node`](featuresbyfeaturetype.md#node-features) | [`word`](featuresbynodetype.md#word-nodes) [`subphrase`](featuresbynodetype.md#subphrase-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) | Gramatical person | `first` `second` `third`
+[person](person.md#start) | [`Morphological`](featuresbygroup.md#morphological-features) | [`Node`](featuresbyfeaturetype.md#node-features) | [`word`](featuresbynodetype.md#word-nodes) [`subphrase`](featuresbynodetype.md#subphrase-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) | Gramatical person | `p1` `p2` `p3`
 [punctuation](punctuation.md#start) | [`Orthograpic`](featuresbygroup.md#orthograpic-features) | [`Node`](featuresbyfeaturetype.md#node-features) |[`word`](featuresbynodetype.md#word-nodes) [`subphrase`](featuresbynodetype.md#subphrase-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) | Punctuation after a word | ` ` `.`
 [ref](ref.md#start) | [`Sectional`](featuresbygroup.md#sectional-features) | [`Node`](featuresbyfeaturetype.md#node-features) | [`word`](featuresbynodetype.md#word-nodes)  [`subphrase`](featuresbynodetype.md#subphrase-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) | Unique identity of a word | `1CO 10:1!1`
 [rela](rela.md#start) | [`Syntactic`](featuresbygroup.md#syntactic-features) | [`Node`](featuresbyfeaturetype.md#node-features) | [`wg`](featuresbynodetype.md#wordgroup-nodes) [`word`](featuresbynodetype.md#word-nodes) [`phrase`](featuresbynodetype.md#phrase-nodes) | Apposition details of a node | `Appo`