関係, かんけい
Takes suru, Intransitive
1. relation, relationship, connection
2. participation, involvement, concern
3. influence, effect
4. sexual relations, sexual relationship
Noun, used as a suffix
5. related to, connected to
これとあれはどういう関係があるの。
は
Particle, pronounced わ in modern Japanese
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis