Statements: All flowers are toys. Some toys are trees. Some angels are trees. Conclusions:  Some angels are toys. Some trees are flowers. Some flowers are angels.

All flowers are toys. Some toys are trees.

Since the middle term 'toys' is not distributed even once in the premises, no definite conclusion follows.

Some toys are trees. Some angels are trees.

Since both the premises are particular, no definite conclusion can be drawn.