如何在PHP中使用Regex从句子中提取主题/人？

Question

I want to match and extract subject and person from the following format of strings:
((When|Where) is)? (my|the)? (next)? (subject)? (meeting|event)? (with (person))?

Possible sentences:

When is my meeting with David Sharma(Person=David Sharma)?
Where is the lunch(Subject=Lunch) meeting?
When is the Friday lunch(Subject=Friday Lunch)?
Where is my next dinner(Subject) event with John(Person)?

Here is my result after various attempts but some query or the other doesn't match properly:

 if (preg_match("/(?:(?:when|where)\s+is\s+)?(?:(?:my|the|your)\s+)?(?:next\s+)?((\S+\s+|\S+\s+\S+)+)?(?:(?:event|meeting)\s+)?(?:with\s+(.*))?/", $query, $matches)) {  
  print_r($matches[1]); //subject  
  print_r($matches[2]); //person  
}

Answer 1

Try Regex: ^(?:when|where) is(?: (?:my|the|your))?(?: next)?(?: (?:((?!event|meeting)[\\w ]+?)))?(?: (?:event|meeting))?(?: with ([\\w ]+))?\\?$

Demo