The problem is: if you're using 1.0 version, you should not translate the IFEngine->verbs part

this

verbs: {                 
    look: `olhar`,                  
    take: `pegar`,                  
    drop: `soltar`,                  
    lookFor: `buscar`          
}

should remain:

verbs: {                  
    look: `guarda`,                  
    take: `prendi`,                  
    drop: `lascia`,                  
    lookFor: `cerca`          
}

In fact in the 1.1 version this section has been removed

Another tip: the `pattern` should all be lowercase and without accents,