 The method was not able to utilize the available huge amount of  monolingual data because of the inability of  models to differentiate between the authentic and synthetic parallel data  .
<meaning-changed>  The method was not able to utilize the available huge amount of  monolingual data because of the inability of  models to differentiate between the authentic and synthetic parallel data  .
 The method was not able to utilize the available huge amount of monolingual data because of the inability of translation models to differentiate between the authentic and synthetic parallel data .