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L02 CFG: Ex. NP with PP modifier CFG: Example PS Trees Indicating Meaning o Ex.1: The child plucked a flower in the garden. S | --------------------------- | | NP VP | | ------ --------------------------- | | | | | det n v NP PP | | | | | | | | ------- ---------- | | | | | | | the child plucked det n prep NP | | | | | | | ------- | | | | | a flower in det n | | the garden * Note that PP is a child of VP indicating that PP denotes a participant in the action of plucking (denoted by VP) o Ex.2: The child plucked a flower in the pot - Where the above means that flower is in the pot (child is not in the pot, and plucking did not take place in the pot). - Thus 'in the pot' is related to flower directly, but not directly to plucking. S | ------------------------- | | NP VP | | ------ ------------------- | | | | det n V NP | | | | | | | --------------- | | | | | the child plucked NP PP | | ------- -------- | | | | det n prep NP | | | | | | | ----- | | | | | a flower in det n | | the pot * Note PP is a child of NP in the above. - Indicates that PP is directly related to (or modifies) NP, and not the VP. o Augment the toy grammar with following rule NP -> NP PP..........................................NEXT PREVIOUS INDEX