Question about selecting subsamples

I have to create sub-samples from a larger data set and I have a few questions:

Here is the back ground:

I have a data set with 252 people, I have been asked to create sub-samples from this data set based on the following conditions and combine them together to reflect anyone in the sample who reported having an accident :

(1) Any individual who answered YES to the first accident inquiry (question #1)

(2) Anyone who answered NO to question 1 but YES to question 6 (another accident inquiry question)

(3) Anyone who answered NO to question 1&6, but answered YES to question 15 (another accident inquiry question)

(4) Anyone who answered no to questions 1,6,&15 but answered YES to question 28.

My question is: how would I go about writing the syntax to select based on these conditions.

All suggestions are appreciated,

Thanks,

Stace