Nestle 1904 GNT - Feature: ref

Feature group	Feature type	Data type	Available for node types	Used by viewtypes
`Sectional`	`Node`	`String`	`word` `subphrase` `phrase`	`syntax-view` `wg-view`

Feature description

The ref feature provides a unique identifier for each individual word in the corpus.

This feature is also populated for phrase or subphrase, but only if they consist of just one word node.

A compound string indicating book, chapter, verse and sequence number of the word inside the verse formatted as follows:

  MAT 1:2!11

This format consists of:

Book: The first three characters (e.g., MAT for Matthew), matching the value of feature bookshort for each book node.
Chapter: Following the book, the chapter number (e.g., 1)
Verse: Following the chapter, the verse number (e.g., 2)
Word Sequence Number: This is the part after the ! symbol, which is the word sequence number within a verse (in this example 11), matching the value of feature num for each word node.

To extract the word sequence number from the identifier MAT 1:2!11, use the following Python code:

<pre>
ref = "MAT 1:2!11"
print ('word sequence number: ', ref.split("!")[1])
# Output: Word sequence number:  11

This first three characters of this feature value are identical to the feature bookshort.

The identifier is based on the XML attribute ref of the w (word) tag.