Help with abstract / concrete noun exercise...

Hello forum

For an assignment, I've been given a list of nouns to identify as either abstract or concrete. So far, I've managed the following:

Abstract Noun

issue
power
year
flavour
question
attack
outbreak
plot
production
football (as in football match)
poetry

Concrete Noun

star
football (as in the ball itself)
theatre
universe
oxygen
ore
home
condiment
pond
picture
metal

Would any kind soul out there take a look at my answers and point out any mistakes. Also, I've some nouns left over for which I'm really struggling to categorise. Therefore any help or advice with the following head-scratchers would be appreciated:

dinner
name
word
dad
stills
cooking
sport
internet
artist
recipe
supporter
stuff
scene
movie
novel