stars 10/20, 2nd nuts

[g-p]

i know nothing abuot anyone, is this an easy raise on the river?

PokerStars No-Limit Hold'em, $20 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB ($2238)
Hero ($2048)
UTG ($4436.60)
MP ($2608)
Button ($2466)

Preflop: Hero is BB with 5[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img].
UTG calls $20, MP calls $20, Button calls $20, SB completes, Hero checks.

Flop: ($100) 9[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets $90</font>, UTG calls $90, MP calls $90, Button calls $90, SB folds.

Turn: ($460) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, UTG checks, MP checks, Button checks.

River: ($460) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets $220</font>, <font color="#CC3333">UTG raises to $560</font>, MP folds, Button folds, Hero ?