 This lack of meaning is not seen as a problem by most linguists (for a discussion on this point, see Colorless green ideas sleep furiously) but from a pragmatic point of view it is desirable to obtain the first interpretation rather than the second and statistical parsers achieve this by ranking the interpretations based on their probability.There are a number of methods that statistical parsing algorithms frequently use.While few algorithms will use all of these they give a good overview of the general field.