Roleset id: ponder.01 , think about, Source: , vncls: , framnet: ponder.01: PONDER-V NOTES: Frames file for 'ponder' based on sentences in financial subcorpus. No Verbnet entry. Comparison with 'think'. OK, maybe not. (from ponder.01-v predicate notes)
person: ns,  tense: ns,  aspect: ns,  voice: ns,  form: infinitive
As the Met discovered years ago following a belated December opening, it is nearly impossible to recapture subscribers once they-1 have had time *trace*-1 to ponder their entertainment choices.
Arg1: their entertainment choices