For each of the English expressions below, draw the correct tree structure. If more than one structure is possible, you need only draw one legal tree.

Remember that your tree structures should only be structures that are permitted by the following phrase structure rules:

S NP VP S_emb (Comp) NP VP

NP (Det) N NP NP Conj NP

N (Adj) N VP VP Conj VP

N N (PP) PP PP Conj PP

S S Conj S

PP P NP

VP IV

VP TV NP

VP DTV NP PP

VP DTV NP NP

VP SV S_emb

VP VP (PP)

a. Some clever walruses and those lazy penguins slept.

b. A kangaroo kicked Bob under the table.

c. Many walruses swim in the ocean and eat stinky fish.

d. This kookaburra hopes that the Hawkeyes win the game.