Sentence:  The necessary <WSD>inference</WSD> , as the authors themselves interpret it , would seem to be this : `` ( 1 ) Spatial qualities are not among those grasped by the sense of touch , as such . 
Meaning of the word marked with <WSD> tags:  the reasoning involved in drawing a conclusion or making a logical judgment on the basis of circumstantial evidence and prior conclusions rather than on the basis of direct observation