Sentence:  As we see from the examples in (55):/  (55) (a)      John will put [<sub>NP</sub> "the car"] [<sub>PP</sub> "in the garage"]/  <font color=white>(55)</font> (b)     <small>✽</small>John will put [<sub>NP</sub> "the car"]/  <font color=white>(55)</font> (c)     <small>✽</small>John will put [<sub>PP</sub> "in the garage"]/  <font color=white>(55)</font> (d)     <small>✽</small>John will put/  the Verb "put" <WSD>subcategorizes</WSD> (i.e. ‘takesʼ) obligatory NP and PP complements (to simplify exposition here, we ignore the fact that the subcategorization properties of "put" may be predictable from its thematic properties, and from general word-order principles such as the <small>STRICT ADJACENCY CONDITION</small>). 
Meaning of the word marked with <WSD> tags:  To practice subcategorization.