SQL inner join incorrect results

My issue is the following:

I'm trying my hand at WordNet MySQL, trying to add another view aside from the ones already present, like:

CREATE OR REPLACE VIEW synsetsXsemlinksXsynsets AS 
SELECT 
       linkid,s.synsetid AS ssynsetid
       ,s.definition AS sdefinition
       ,d.synsetid AS dsynsetid
       ,d.definition AS ddefinition 
FROM synsets AS s 
     INNER JOIN 
     semlinks AS l ON s.synsetid = l.synset1id 
     INNER JOIN 
     synsets AS d ON l.synset2id = d.synsetid;

So taking that code as a reference I tried to do something like:

CREATE VIEW graph AS  
SELECT 
       l.linkid
       ,s.synsetid AS sssinsetid
       ,w.lemma AS swlemma
       ,s.definition AS sdefinition
       ,d.synsetid AS dsynsetid
       ,w.lemma AS dwlemma
       ,d.definition AS ddefinition 
FROM synsets AS s 
     INNER JOIN  
     semlinks AS l ON s.synsetid = l.synset1id 
     INNER JOIN  
     synsets AS d ON l.synset2id = d.synsetid 
     INNER JOIN  
     lexlinks AS x ON l.synset1id = x.synset1id 
                      AND l.synset2id = x.synset2id 
     INNER JOIN  
     words AS w ON w.wordid = x.word1id 
                      AND x.word2id = w.wordid

But it did not worked as expected. While the first gives me 285639 rows, mine just give me 12 rows. I'm not sure where is the problem. Any help?

EDIT:

What I expected to happen was that the statement will return the words in sslemma and their lemmas in dwlemma. So I was hopping I will get the words used and their lemma form also. Thanks.

Solution

Use LEFT JOIN for the 2 extra tables.

 ...
 FROM synsets AS s 
 INNER JOIN  
 semlinks AS l ON s.synsetid = l.synset1id 
 INNER JOIN  
 synsets AS d ON l.synset2id = d.synsetid 
 LEFT JOIN  
 lexlinks AS x ON l.synset1id = x.synset1id 
                  AND l.synset2id = x.synset2id 
 LEFT JOIN  
 words AS w ON w.wordid = x.word1id 
                  AND x.word2id = w.wordid

Because if INNER JOIN is used then it would filter those that don't match.