Task: Question Answering
Input (English): Question: In the functional examination of a patient with chronic obstructive pulmonary disease, all findings are expected to be LESS one: 
 Options:  <1> FEV1 less than 80%. <2> DLCO decreased. <3> FEV1 / FVC ratio lower than 0.7. <4> Lung volumes decreased. <5> Negative bronchodilator test.
Output (English): 4