- , , . , , . , , . , , , : , , , , . , , . , , . , .
, . , Who(m) did John look at? What are they thinking of? Which operations is the tool good for? , , - , c , , . . , , , : At whom did John look? Of what are they thinking? For which operations is the tool good? , , : ? ? ?
, , , , . , , Help must be called for, The house was never lived in. (help , the house ), : for help, in the house. , , . , . , , , , . help - , call , , the house - , live , () .
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. , - , - , . , , , , : | , | . , . , , , - (call | for help, live | in the house), call for | help, live in | the house. , , , - .