1258. Synonymous Sentences

Given a list of pairs of equivalent words  synonyms and a sentence text , Return all possible synonymous sentences sorted lexicographically .

 

Example 1:

Input:

synonyms = [["happy","joy"],["sad","sorrow"],["joy","cheerful"]],
text = "I am happy today but was sad yesterday"
Output:

["I am cheerful today but was sad yesterday",
​​​​​​​"I am cheerful today but was sorrow yesterday",
"I am happy today but was sad yesterday",
"I am happy today but was sorrow yesterday",
"I am joy today but was sad yesterday",
"I am joy today but was sorrow yesterday"]

 

Constraints:

• 0 <= synonyms.length <= 10
• synonyms[i].length == 2
• synonyms[0] != synonyms[1]
• All words consist of at most 10 English letters only.
• text  is a single space separated sentence of at most 10 words.