Message
funding-source should contain one funder name in institution-wrap/institution
Rule XPath:
This rule ASSERTS the following, raising an alert if FALSE:
let $funding-source-name := institution-wrap/institution | institution | named-content[@content-type
= 'funder-name'] | text()[normalize-space()] returncount($funding-source-name) = 1
and empty(node() except (
$funding-source-name
| named-content[@content-type = 'funder-identifier']
| institution-wrap
| text()[not(normalize-space())] ))