Predicate 
discover:
  Frames file for 'discover' based on sentences in financial
  subcorpus.  Verbnet entries 29.5, 30.2, other framed members include
  assert, deny, figure, observe, recognize; regard, scrutinize, study,
  view, watch.  Framenet entry Becoming Aware.  Comparison with
  find (out).
Roleset discover.01 Verbnet Class: NONE "find (out)":
Roles:
Arg0:finder
Arg1:thing found, discovery
Arg2:benefactive, found for
Arg3:attribute on arg1
Examples:
| discover an NP (-) | 
|---|
person: ns
tense: past
aspect: ns
voice: active
form: full
| Intel said that last week a customer discovered two flaws in its
 80486 microprocessor chip's ``floating-point unit'', a set of
 circuits that do certain calculations.
 
 | 
| ArgM-TMP: | last week | 
| Arg0: | a customer | 
| REL: | discovered | 
| Arg1: | two flaws in its 80486 microprocessor chip 's ``
        floating-point unit '' , a set of circuits that  do certain
        calculations | 
| discover an SBAR (-) | 
|---|
person: ns
tense: present
aspect: ns
voice: active
form: full
| But when they discover that markets aren't always as liquid as
 they supposed  -- markets jump.
 
 | 
| Arg0: | they | 
| REL: | discover | 
| Arg1: | markets aren't always as liquid as they supposed | 
As usual, complementizers should be left out of the arg1.
| with benefactive (-) | 
|---|
person: ns
tense: past
aspect: ns
voice: active
form: full
| John discovered for Mary the set of books that he'd borrowed from
 her years earlier.
 
 | 
| Arg0: | John | 
| REL: | discovered | 
| Arg2-for: | Mary | 
| Arg1: | the set of books that he'd borrowed from
    her years earlier | 
| with attribute (-) | 
|---|
person: third
tense: past
aspect: ns
voice: passive
form: participle
| John was discovered *trace* to be criminally insane.
 
 | 
| REL: | discovered | 
| Arg1: | *trace* -> John | 
| Arg3: | to be criminally insane |