Comprehension Passage

Direction: Study the following information carefully and answer the given questions.

In a certain code language,

lazy girls are happy → gar tax axw spt

sweet pretty not lazy boys → glo trd afr gar sup

mobile happy are house → pxa axw spt nwa

try lazy boys sweet happy → axw gar trd sup flg

Four of the following are alike in a certain way. Which of the following does not belong to the group?

happy → pxa

are → tax

try → flg

sweet → afr

lazy → trd