Please give what you can.
( Please ( ( give ( what ( you can ) ) ) . ) )
(ROOT (S (INTJ (UH Please)) (VP (VB give) (SBAR (WHNP (WP what)) (S (NP (PRP you)) (VP (MD can))))) (. .)))
Give what you are able.
( ( Give ( what ( you ( are able ) ) ) ) . )
(ROOT (S (VP (VB Give) (SBAR (WHNP (WP what)) (S (NP (PRP you)) (VP (VBP are) (ADJP (JJ able)))))) (. .)))